Me 16M feel like my relationships coming with 16F
Okay so I've been in a relationship with this girl for about a year now and about 2months ago we had a massive fallout over her not willing to remove these guys I was a bit insecure over and I ended up calling her a slut which I take full accountability on how it was wrong while she said some harsh things I've moved on from. So after that we broke up for about a month and a half and decided to try again with us hanging out for 5 days on a row before valentines which was alot for me but I enjoyed it. Ever since valentines my girlfriends been making excuses for 2 months to not hang out with me and how she's not aloud but hangs out with her friend 3 times a week because apparently her mums okay with it. For the last month she's just became more and more dry with us having so many talks on it apparently I take the blame because I argue alot whereas she doesn't want to take any accountability making me feel crazy a bit. We don't talk on the phone much anynore because apparently she's to busy for that now and she won't even hang out with me at school because she doesn't wanna leave her friends. Today was her birthday and I really wanted to hangout with her and I thought she'd have the thought reciprocated in her mind but then she went to hangout with her family which was okay with me. What else happened today is that one of her friends which I'm honestly starting to develop feelings for invited me to the library today to study with me going straight to ask my girlfriend if she'd be comfortable with it even tho it's fully platonic she said yes which wasn't really what I was expecting but I just feel like she doesn't care about me anymore she doesn't listen to me ask me questions or even laugh at my jokes like she use to while her friend is always so intrested in me my well-being and just makes me feel heard I don't know genuinley what I should do with my relationship please help if I should keep trying within the relationship or just give up completely because she's just changed so much from even the little things like calling me cute names or sending me videos or asking to spend time again.
Please help