How do i cope with my boyfriend�?

My boyfriend and i have been going out for 4 months now and i have never felt this way that i feel for him now. i feel constantly worried that he is going to break up with me because he has been rude to me for a week now acting kind of strange. I am falling head over heels for him all of a sudden (not because of his rudeness) and i feel like he's going to break up with me any second now. HELP! any advice would subside on how to relax and on what to do.