Help wwith my boyfriend!!?

So we play this game together its an online game but yesterday he was sick n still is i told him some stuff to make him feel that i truely care(which i do) n then we didnt talk for about 10 mins well on and off he starts saying he is stupid n stuff. I dont understand why he come out like that i told him he wasnt n other things about that topic. he then asked to battle w/ me n i told him ok i tried to invite him and he logs right off w/o 1 word and today i asked him why he did that and he totally blew me off..i did the same back tonight i know it was wrong but he isnt cheery at all to me no more. ik he has exams n he is sick. should i just forget it since he is stressed since exams are tommorw? or respect that he is studying ._. i dont buy it since he been sick since we meet which was last month is that possible >.< i trust him but i dont trust him w/ girls /: im a jealous person! help please sorry its long