Been in a constant stream of Whatsapp communication for literally years.
Send each other pictures of every meal you eat.
Drink wine, start talking about something sad that happened years ago, and then start crying.
Hold grudges against literally anyone who has ever wronged either of you.
Love each other's friends, including even the ones you haven't met.
Exchange the world's most inane gossip about people you don't even know anymore.
Gossip about the most trivial family drama as though you are literally the Kardashians.
Exchange secret looks at family events when you're forced to speak to people you hate.
WhatsApp through your favourite TV shows instead of talking to the people you're actually watching TV with.
Provide each other with detailed medical diagnoses, instead of just using Google or going to the doctor.
Spend hours together in silence, just hugging.
Give each other pep talks on demand.
Exchange the juiciest secrets.
Watch repeats of the same TV shows and movies whenever you get together.
Talk about what your mum was like at your age and wonder whether you'd be friends if you were the same age at the same time.
Text each other just saying "I love you" just because.
Lie on the sofa and let your mum stroke your hair.
Send each other selfies when you think you look pretty.
And jump to each other's defense before you even know what the argument's about.