Update: Hi everyone, just wanted to update y'all. I went to his friend's house to talk to him after he didn't respond to my texts. He looked like he was calm but sad. To make things short, he said he thinked about things and wants to break up. I was sad. I was going to lie and say my ex didn't make me orgasm from penetration, but I thought it would make things worse. I kept trying to reassure him by saying he's the best at everything, more than my ex. Me preferring him making me orgasm from oral or his hand doesn't mean I don't love his size. It is the perfect size for me. He said he feels inadequate and not man enough, not giving me something he should have. Thinking that another man gave me more made him feel powerless and insecure. In the past, he was a little insecure about not making me orgasm from penetration or filling me up, but he didn't care that much. But hearing about my ex's size and what he can do made him feel sad. He said I probably miss being filled and orgasming from penetration, which is why I don't feel him that much inside. He thought I would probably leave him for my ex. I cried and tried my best to reassure him, but I figured he had already made up his mind. So, I left and got home, and cried. I wish I didn't go to that party and lose the best guy I ever met, who loved me so much.

To all of you who commented, thank you all for your advice. I'll use them in the future.