My suggestion is that you should not keep this kind of thing to yourself. You'd better tell it as a joke with your friends, roommates and roommates and listen to everyone's comments. If you can speak out boldly, you won't think about it.
You can say to your roommate, "Hey, what do you think of the math teacher?" "I think he is handsome and I like him." And so on, you won't be too subjective when others comment on him. Maybe there will be a little change, at least I won't guess for myself.
If you can be calm after talking to your roommate, it would be nice to talk to your boyfriend.