My boyfriend never calls me or sends me a text message. Even if I call him, he will ask what's wrong. I asked him if he could care about me, and he said he had sex.

He doesn't love you, he just enjoys being loved. It's not a personality problem at all. If I really like you, I will take the initiative to contact you. Even boring people will take the initiative to contact people they like, but it is not very sweet. There are two kinds of talking less and ignoring you. When you finally ask him that question, I can only say that it is very likely that he is holding you steady and he will continue to enjoy this treatment. Another is that he feels guilty because of your feelings. Anyway, he doesn't like you. You know, he can promise not to like others in the future. It is quite possible that he already has an impossible person in mind.