Your question doesn't completely make since to me... What do you mean "collect anything from you?" Are you talking about money like to pay for a dinner or movie or something? The answer to that one is he probably feels like you are chopping off his testicles by him accepting to take money from his "richer" girlfriend. Most men need to feel like they can (are the) provide (providers.)
what should I do. My boyfriend always refuses to collect anything from me and I always wondered why and last night he said it was because I was richer than him?
Just because your parents have money doesn't mean you're rich, your just living off your parents money until you're old enough to go out and make your own, so get over yourself when it comes right down to it you're just as poor as your boyfriend.