Is it normal i feel like this?

My boyfriend and I have been dating nearly a year. We've had our highs and lows (we both have mental disorders an I have a learning / social disorder which I know makes our relationship stressful at times). I know I'm madly in love with him ans hes in love with me but lately I feel like parts of our relationship that never bothered me before are and cause us to argue. For example, we both have hard course loads at college and during the semesters we usually only see each other once a week but that has been bothering me. It caused a fight last night and he didn't talk to me at all tonight. It breaks my heart every time we fight and then don't talk. I want to give him his space but at the same time I feel the need to be selfish to protect myself. I want to be with him and I know this.isn't worth a breakup but I feel alone in my relationship sometimes when we disagree.

What can I do to fix this? Is this normal?