1. You’ve called them during the day “just to chat”.2. You’ve called them during the day “just to chat” even though you live together and you saw them this morning and will see them again tonight.3. You have some extremely weird in-jokes.4. You can communicate almost entirely without words, just in a series of weird noises and in-jokes.5. You have a weird voice you put on when talking specifically to them.6. You know exactly what you need to do to really, really annoy them.7. You still have fun if you go out together with no one else.8. You will tell them about your health concerns, no matter how embarrassing.9. You will have them look at the weird mole on your butt with absolutely no shame.10. You save memes to send or show them at a later date.11. You have saved literally hundreds of memes because of this.12. If you get a notification on your phone there is about a 50/50 chance it’s them.13. You’ve developed an interest in something you wouldn’t have specifically because of them.14. They’ve now also developed an interest in something just because of you.15. You know exactly how they like their food.16. You know the annoying habits about them that absolutely no one else does.17. You wouldn’t think of making a big decision without talking it over with them first.18. If you feel anxious or sad they’re the first person you talk to about it with.19. You’ve had some shouting matches but completely forgiven each other afterwards.20. You can openly fart in front of each other, simply because you spend so much time together it is actually inevitable.21. You know exactly what they need when they’re sad, or anxious, or sick.22. They know exactly what YOU need in those situations, too.23. You know each other’s phone/email/whatever passwords.24. Or if you don’t, it’s only because you know 100% they have nothing to hide and their inbox is probably incredibly boring.25. People find your relationship sickeningly sweet and you’re ALMOST embarrassed by it.