We keep arguing and I don't know what to do

C.
My boyfriend and I have been dating for almost a year and recently, him and I have been getting into arguements over random stupid things. We have a long distance relationship and his day can be a lot crazier than mine on a regular basis. Which always leads to him being tired at the end of the night and since he's three hours ahead, I'm not tired so it can be difficult sometimes when I want to talk and he's too tired...but anyways we always fight at night when we both should be sleeping...so I'm kinda at a loss at what to do. I'm scared that if I talk to him about it then that might spark another argument. Any ideas anyone?