My girlfriend asking me to stop having sex with her

My girlfriend (22F) and i (24M) have been dating for about a year and a half. We've lived together for a few months. We've had sex regularly and always seemed to be into it. Nice and intimate. With lots of foreplay and a lot of cuddling afterwards.<br><br>She works a lot since she's an intern at a hospital, so she's almost always working. I've been working a more relaxed job at a library. So I have a lot of spare time and I can do whatever I want. So I go to the local pool to swim a lot and do some bodypump classes.<br><br>I started hitting the gym about 2-3 months ago and I could really see some changes. I used to be a lot skinnier, but now I'm more toned and I feel better about myself. My girlfriend has always told me how much she liked the way I look, even when I was skinny.<br><br>We had sex a few days ago and she was just screaming in pain. I didn't understand because I always had trouble finding the right spot and she always loved it when I was on top, even when I go harder. I kind of stopped and asked if that still hurt and she said yes. So I stopped because she seemed in a lot of pain and I cried a little.<br><br>She told me that she was sorry for hurting me, but that I don't fit inside her anymore when I'm on top. I asked if I could still do it from behind or something, but she didn't want to at first. I told her that I really wanted to and then she didn't say anything more.<br><br>I did it from behind and she seemed to enjoy that. But I just started crying. I was so ashamed of myself. I somehow got too big to fit in my girlfriend. I don't know why it's so and I'm just ashamed.<br><br>I told my girlfriend that I understood and that it would be awhile before I asked again. My girlfriend told me that she just wanted me to be honest with myself about my body. I didn't understand and she meant that I'm working out a lot and that I'm getting too big for her. I'm already 6ft3, so I'm not sure how much bigger I am supposed to be. She told me that I'm just too thick now and that she can't have sex with me anymore.<br><br>This felt like a stab in the heart for me, since I always loved having sex with her. And she always loved it too. I get that i'm working out, but I don't understand how that would make me look so disgusting that I can't have sex with the woman I love anymore. I can't talk to my friends about this, because they would just laugh at me. I don't want to go to my family with this cause they would tell me to just go out and find another woman.<br><br>My girlfriend just told me to stop. We can't have sex anymore. And she told me to just stop working out and i would lose weight she said. Like it's that easy. I work out for my mental health and to feel better and now I'm just supposed to stop because I'm apparently too big for her? It hurts so much.<br><br>We haven't had sex in weeks and I miss it so much. I miss holding her in my arms and her touching my face. She told me that we can still do other things, but it's just not the same. I told her that I still love her and I want to be with her, even if I don't fit anymore.<br><br>She said that she just can't do it anymore and that my size is just too much for her to handle. I'm so ashamed of myself. I just want to go back to being skinny and weak just so I can have sex with her again.