I (17 m) need help with my girlfriend (17 f)

r/

So me my best friend we will call M and my girlfriend we will call A where chatting in a group chat we made since we all are mutuals and they started how do I say kind of instagating and M I just have some pent up anger towards him from stuff over the years and A me and her have only been together for a few weeks now and I’ve tried everything when she was upset and I didnt know why I asked her about it and she was sending passive aggressive texts and I was asking if she wanted space she said yeah and we would talk which doesn’t seem like much but this is my first real relationship so I’m still trying to learn and it’s hard to try and learn when she is sensitive and keeps getting upset so that built up some angers and I lashed out at them and they started instagating she say emo ass boy which again isn’t much but like it hurts to hear that from someone you care so much about. And the friend me and him play insult eachother so nothing he said to me didn’t affect me it’s just Its weird to have her talk to me like that when she isn’t the one mad I’m mad and she is still treating me like I’m in the wrong despite them just acting they say they where and you know it felt personal so I got mad and left a long paragraph to her and it had a lot of hurtful stuff but nothing too hurtful I didnt think and I sent it and it hurt her (the paragraph was me telling her just like all my pent up anger towards her and stuff like that and like the little things she does that irritates me and it wasn’t supposed to like hurt her but I wanted to let her know I have stuff to talk about her too if she wanted to get it started and I might have went to far but I don’t know what to do things settled down and I feel like asking chat gpt for advice would be faster but it’s not as helpful as the people here on reddit

TL;DR I sent gf a hurtful paragraph that wasn’t supposed to hurt her as much as it did and she is upset and is being cold towards me (not like a we just fought I don’t feel like being all lovey dovey cold iykwim but like where are we going in our relationship kind of cold)