I asked him why you didn't change me because I was so melodramatic. When I was introduced to you, he said he didn't love me, even though he was joking.

Dude, you think too much. Of course he can be joking, because if you ask him like this and he doesn't answer, then ask him why he doesn't answer, or you have doubts about him, or something else. So he must answer your question, but he can't answer it with too serious expression, so he just answers you in a joking tone. Well, I can see that he still loves you very much. Not that there's anyone out there. You think too much.