Ex called me a fat slutt

I have always had body issues but I’m always trying to stop myself from saying mean things about my body, back in high school I use to like this guy but he told me “ you have a pretty face but I’m not really into chubby girls” I was so sad :( and after that I started dating a guy who constantly told me he loved my body but I felt like I wasn’t good enough I lost so much weight I was anorexic then later gained all the weight back and I’m now at a healthy weight and eat regular, we had an argument over the phone because I wanted to break up with him I needed time for myself I needed to find myself and he ended the call with “ fat slut “ then he laughed and hung up I was so hurt and I knew everything he told me was a lie, it’s been a couple months since I distanced myself from that person, there is this guy I really like but I’m constantly thinking “ he probably doesn’t like girls like me, he deserves someone pretty and slim like he is” but he’s always looking at me and half of me gets excited like “ omg maybe he likes me “ then the other half is “ he probably thinks I’m weird “ I don’t know who to talk to with about this :(