I (f24) feel like my bf (m34) is too focused on my weight and it's scaring me

My bf and I have been together 8 months. We met up yesterday to cook a meal together and get some dinner ingredients. We were going well and I felt like he was getting close to me and had some romantic moments so I felt comfortable asking him if he thought I could lose some weight. I said I felt like I'd gained some weight and asked if he could give me the male perspective. He said he hadn't noticed but then asked me if I was worried about my weight. I said I had just been thinking about it but then he said he didn't like fat on women because "the whole fat = pretty thing is a myth".<br><br> I said it wasn't a bad thing because I didn't think I was overweight and he said he'd tell me if I was. He said no and then said that if I started to put on weight he'd stop jiggling me when we were having sex. He then said that he doesn't like "fat" women. I asked what he considered "fat" and he said that it would depend how I was shaped and that if I had a big stomach, then I wouldn't be considered fat. This made me think he didn't consider me fat and was just making a comment to make me feel good.<br><br>When we were getting ready to leave I noticed his face had turned red and I asked him if everything was alright. He said "you don't understand, you have a great body, there's nothing wrong with you." He sounded angry and I asked why he was annoyed. He said "your friend messaged me this morning asking if I thought you were overweight." I asked if that was what had him angry and he said "yes because I don't have a fat woman's body, I like jiggling when we're having sex and I don't want you to gain weight."<br><br>He said he was scared I was going to gain weight and then he'd stop jiggling me. I asked what he was proposing and he said that he would tell me if I'd put on weight and then he'd stop jiggling me when we had sex. He said he doesn't like jiggling women. I said "you're a weirdo" and he said "no, I'm being honest and you should thank me." He said it would be disrespectful if he didn't tell me. He said "you should thank me for telling you because it means we can stay together."<br><br>I asked him why he wouldn't want to be with me if I gained weight. He said "if you gain weight then I won't have sex with you the way you want, so it would make no sense to gain weight." I said "I'm going to stop seeing you" and he said "good because you have a great body and you should keep it that way because it's attractive. You're very pretty." I said "yes, but I don't want to be with someone who I can't have sex with" and he said "if you gain weight then you won't be able to have sex with anyone, so you should be grateful I'm being honest with you and not lying."<br><br>He then went silent and I said "don't bother texting me. I think you're a weirdo for being so focused on my weight" and he didn't respond. I've tried to talk to him since and he won't even answer my messages and says he's just trying to help me maintain my weight and my body.<br><br>Has anyone here ever heard of this before? Am I overreacting? Should I get a restraining order or just leave him? I'm not sure if I'm in the wrong but I don't like how he's treated me.