Open when letters: 60 ideas and how to write them for your partner

What you need

• Paper or cards you like, plus envelopes.
• A pen you enjoy writing with.
• A box, tin or ribbon to keep them together.
• A quiet evening and a playlist.
• Small extras if you like: a photo, a pressed flower, a sticker or a snack.

Handwriting adds warmth, but typing and printing is fine if your writing is hard to read. What matters is what you say.

Open when... for everyday moments

• Open when you wake up and cannot get out of bed.
• Open when you need a laugh.
• Open when you have had a hard day.
• Open when you cannot sleep.
• Open when you are bored.
• Open when you are hungry.
• Open when you are cold.
• Open when you have good news.
• Open when you want to dance.
• Open when you are feeling brave.

Everyday letters can be short and light. A joke, a memory and a sweet line are enough.

Open when... for emotions

• Open when you are sad.
• Open when you are stressed.
• Open when you feel lonely.
• Open when you are angry with me.
• Open when you doubt yourself.
• Open when you are anxious.
• Open when you are homesick.
• Open when you feel unloved.
• Open when you feel overwhelmed.
• Open when you need to forgive yourself.

For emotional letters, keep the tone gentle and avoid trying to fix. Say what you see in them and why you love them. If you want help finding words, our compliments for your partner and ways to say I love you give plenty of examples.

Open when... for special moments

• Open on your birthday.
• Open on our anniversary.
• Open on the first day of a new job.
• Open before an exam or interview.
• Open when you reach a goal.
• Open on New Year's Eve.
• Open on the day we have been together 1,000 days.
• Open before a big trip.
• Open when we have not seen each other for a month.
• Open on a rainy day.

For milestone letters, use our how long have we been together guide to work out the date.

Open when... for long-distance couples

• Open when you miss me.
• Open when you want to hear my voice.
• Open when we say goodbye.
• Open when you are counting the days.
• Open when the time zone feels too big.
• Open when you see our photo.
• Open when you cannot reach me.
• Open when you want to plan our next visit.
• Open when you doubt us.
• Open when you are on your way to me.

These letters can be especially valuable when apart. See long distance date ideas and apps for long-distance couples for more ideas.

A simple template for any letter

1. Start with their name and a warm line: "Dear [name], I hope you are reading this when you need it."
2. Say what the moment is: "I wrote this for the day you feel...".
3. Share a memory that fits the mood.
4. Say what you love about them in that moment.
5. Give a small action: "Go make yourself a tea and breathe."
6. End with something warm and personal: "I love you. Come find me when you finish."

Aim for a page. Longer is fine if you are enjoying it, but short and honest works well.

Ways to present them

• Put them in a box with a ribbon and a note.
• Number the envelopes and give them in order.
• Decorate the outside of each with a drawing or sticker.
• Tuck them in a notebook with tabs.
• Stack them in a jar with the labels visible.
• Hide them around the house or in a suitcase for a trip.
• Give a few at a time for a month.

Whatever you choose, attach a small instruction: "Do not open before the moment!"

Tips for writing well

• Write as you speak. Do not try to sound like a poet.
• Include real details: names, places, jokes.
• Be honest. If you are not sure of a sentence, leave it out.
• Write in one go, then read it aloud and fix anything that feels off.
• Keep a few lines positive and one a little playful.
• Avoid anything that sounds like pressure or a complaint.
• Give yourself time. Write a few letters each evening rather than all at once.

If you are worried about the handwriting, remember that the imperfection is part of the charm.

A worked example: an "open when you miss me" letter

Here is a sample you can adapt. It is deliberately simple, because the best letters sound like the person who wrote them.

Dear Sam, if you are reading this, you are probably looking at your phone and wishing I was next to you. I am wishing it too. I want you to remember the evening we got lost on the way to that tiny restaurant and ended up eating chips on a wall, laughing about the map. That is the version of us I carry around: easy, silly and together. Make yourself a cup of tea, put on our song and read this twice. Then send me a message, any message, and I will answer as fast as I can. Next time I see you, I plan to hug you for a very long time. I love you. Yours, Alex.

Notice how it has a memory, a feeling, a small action and a warm close. You can reuse this shape for almost any letter: change the memory, change the action, keep the warmth.

Where to find the right memories

When you sit down to write, the blank page can freeze you. Make it easier by collecting material first. Scroll through your photos and pick five that make you smile. Look at old messages for jokes or phrases that only you two understand. Think of the first time you noticed something you love about them. Think of a time they helped you, a time they made you laugh and a time you felt close. Write each one as a single line on a sheet of paper. When you start a letter, choose one line and expand it into a few sentences. You will rarely run out of material, and each letter will feel different because it draws on a different memory. If you want more prompts, our questions to ask your partner can spark ideas you may have forgotten.

Mistakes to avoid

• Do not use a letter to settle an argument or make a request.
• Do not write what you think they want to hear. Write what is true.
• Do not make promises you cannot keep, such as "I will never hurt you".
• Do not rush. A letter that feels hurried is easy to spot.
• Do not worry about spelling. The warmth matters more.
• Do not give all the letters at once if you want them to last. Space them out.

If a letter ever feels hard to write, take a break. Sometimes a few days away from the page is all you need.

What to do if your partner is not sentimental

Not everyone loves letters. If your partner prefers humour, make the letters funny: open when you have burned dinner, open when your team loses, open when you cannot find your keys. If they prefer practical gifts, tuck something useful in with each letter: a tea bag, a plaster, a coupon for a favour. If they dislike writing, record voice notes or short videos instead. The idea is the same: a message ready for the moment. Adapt the format to their taste. And if they are shy about receiving emotional notes, begin with the light ones and let them warm up. Over time, you may find that your partner begins to write back, which is the best result of all. For more ideas that suit different tastes, read how to make your partner feel loved.

Ideas for letters from both of you

Open-when letters do not have to be one way. Swap sets with your partner, so you each have a stack to open. Or write a shared letter, taking turns to add a paragraph, and keep it in a box to open together on an anniversary. You can also write a letter to your future selves and seal it for a year, or for five. Put in your hopes, your jokes, your favourite photo and a prediction or two. When you open it, read it aloud and see how many of the predictions came true. If you want a date for the opening, use the love counter to choose a milestone.

A last word on keeping them

Tell your partner that there is no pressure to open every letter, and no shame in opening one early. The point is not to follow a rule but to have something kind waiting. Some people open one a week, others save the whole stack for the hardest month of the year. Some keep one unopened for decades, simply knowing it is there. Whatever they choose, the stack becomes a quiet reminder that someone thought about them in advance. If you are the one who receives them, write a reply letter for each one you open, and keep a small box of your own. After a few years, the two boxes together make a record of your relationship that no photo album could match.

Where Buffaly fits

Writing a letter is a lovely way to put a Compliment or a Conversation into words, and it keeps the closeness going between moments in the app. Buffaly is an iPhone app for couples who are already together. You connect with a 4-character code and share one heart. Hug, Kiss and Compliment each add 15 percentage points, a Conversation adds 25, a Date adds 80. The heart slowly empties, so it helps you keep topping up closeness instead of waiting for a big moment. It is meant to make small moments easier to remember. It will not make a relationship good by itself.

What Buffaly is not: it is not a quiz or content app, not a messaging app, and it does not share your location. It is an entertainment tool, not a medical, psychological or counselling service. The download is free and your first action is free. Then there is a 7-day free trial, then EUR 4.99 per month or EUR 29.99 per year for both partners. It needs an iPhone with iOS 17 or later; there is no Android version yet.

Frequently asked questions