My boyfriend, who is 27, mentioned that I'm not at his ideal weight. I'm 29.

I’m a 29-year-old woman, and my boyfriend is 27. We’ve been together for seven years. Recently, during a casual conversation, we found ourselves discussing what attracts different people. He mentioned that I’m not really his type, but he likes me anyway. I found this confusing, but he insisted that he genuinely likes me. I tried to brush it off. Then, he suggested that I could lose some weight and even showed me what he considers to be his ideal body type, which is significantly smaller than I am. I told him that achieving that would take time and effort, something I had already been considering. He responded by saying he didn’t think I’d ever be able to reach that size. This left me feeling hurt, as it seemed he didn’t believe I could meet his ideal. The conversation shifted again when he asked if I’d ever thought about being with other people. I told him I hadn’t, but he admitted he had and wouldn’t mind hooking up with someone attractive and then never speaking to her again. This made me feel uneasy, especially considering he once said that I was the only girl who would date him. It makes me worry that he’s only with me because he thinks he can’t find someone else. Throughout our relationship, we’ve broken up several times, and he has always begged me to come back, even stating that if I didn’t want to be with him, we couldn’t stay friends. This complicates things since our families are friends, and I often find myself at his house. Now I’m left feeling confused and upset, especially since this all unfolded on Christmas. I'm unsure whether to continue this relationship or end it entirely. Please help me figure this out.