My boyfriend prefers to distance himself than talk things out

My boyfriend started acting weird for some days and i didn't ask because i felt he'll approach me first and he's having exams so i thought it was just that...after four days i reached out and he said he doesn't know what's wrong but he's been upset and he just doesn't know and he said i should've asked him what was wrong. Naturally i feel bad that he didn't tell me anything but i argued that he should've said something because he wasn't communicating and it wasn't fair to me, could've said he's going through something and he can't be available now. When i wanted to talk it out and fix it he distanced himself again and I'm doing the same because i think he should know how to communicate with someone he claims to love. If i approach him first he'll do it again. He knows we're supposed to communicate. Please am i doing the wrong thing by distancing myself too??