I miss when if someone likes you, that was just that. It didn’t mean anything unless you decided it did. Until that decision, you could sleep and cuddle and do stupid shit like usual because there is no territory claimed.
If there is, you can still be chill.
Unless you’re in with a kid that has new expectations.
But if you’re in a relationship with someone normal, it shouldn’t change the friendship. You just let people know that you have a really good friend that you like kissing, and if someone else kisses your good friend in this time period, it wouldn’t be cool.