boyfriend problems!

okay so basically - i’ve been dating my boyfriend for over 2 years. i love him to death and i know i’m young but hesjust been such a big help with everything i’ve gone through. we have our ups and downs but overall i’m happy with him. he makes me so happy

to recently i’ve had to do a project with somebody in my class. i do not care for him AT ALL! if anything he’s just annoying! but my boyfriend is for some reason getting all jealous over it. anyways once we steered away from talking about the project and my boyfriend is mad about it. we didn’t talk about anything inappropriate and there was no flirting, but he still decided that it was time to block the girl that tried to break us up - twice. he knows how much this hurts me, and i’m just so scared of losing him. she was such an asshole to me and literally isnthe reason i hate myself and think i’m disgusting. he knows ALL IF THIS! he was a witness!! and yet he still wants to be friends with her. the last time they talked she wrote him a paragraph about how she was done with him and how all he did was hurt her. and she made sure to slut shame me through the whole thing too, knowing damn well he’s my first boyfriend. and the first time she tried to fuck him i got mad and yelled at her. which i later apologized for in hopes that we could become friends, since they were becoming friends again anyways. please don’t come st me for being insecure. I KNOW I AM!! and i generally don’t let it get in the way of us, but when she comes around i just start having anxiety attack’s and i can’t control them. he knows that this happens and he still wants to be friends with her. to add another reason to why i don’t like her, she told all her friends that they dated while we were dating, and i know that they didn’t. i trust my boyfriend i just don’t trust her. please give me advice on things to do to make me feel better about this situation!! and please no hate!! i know i can’t change him or tell him what to do, so all i want is to know how to be okay with him talking to this girl again.

UPDATE: it turns out he’s been talking to her for over 3 months and he just told me that as an excuse. it just hurts!!