NEEDED advice

Okay guys so I got out of a relationship with a boy I feel deeply in love with but after we broke up he started to change like he would always make sexual remarks about my friends and stuff people would tell me that he was messing around with a girl I thought was my friend and it just hurts me and it’s been 6 months and I’m still hurt 😔 and it’s like I can’t open up to no boy or even talk to another boy because I’m still hurt and I’m trying to move on from him and I don’t know why it is so hard... any advice ? 💕