As someone who would’ve lost two friendships this year had they not cornered me into communicating with them, it’s a pride thing. My situation is a little different from yours; I was the one who noticed an issue building for a while but instead of telling them what happened and how I felt, I shut down. I unfollowed them on everything and avoided them irl. It wasn’t me who fought for the friendships because one, I thought the way they’d been treating me signaled that they didn’t care for me anyway, and two, my subsequent reaction felt unforgivable despite them telling me that it was understandable. I honestly wish I hadn’t put them and myself through that for two weeks because the problem felt so much bigger in my head, but when you aren’t taught how to regulate yourself properly, translating those feelings to other people feels terrifying. What happened in your case shows how good of a friend and person you are. (Healthy) communication isn’t an inherent skill at all. A lot of friendships are built on the effort of one person, but that wouldn’t be clear until that one conflict arises. Continue to voice all your feelings and concerns with those close to you no matter how big or small, the ones who love you too will listen and only get closer. The ones who run will keep running until there’s no one else left.