Am I being pathetic for ending it over this?

My boyfriend has stayed at mine for 3 nights in a row now and I've really enjoyed him being here. Today he went home for some things and promised he would be back. Hours went by and I text him asking where he was and he said home. I said are you not coming back and he said no that he's 'been sick'. But when I asked again 'why would you want to stay at home by yourself' he just said 'cus I can'. I then started saying how I'm not putting up with him promising he's coming back when he's not and making up excuses and that I know there's a reason he's not come back so it's over. Why would he just choose to be on his own all night when he could have came back like he said he was doing in the first place? All he's saying is things 'no, don't be stupid'. Am I being stupid for this?