Blow jobs

So I gave my boyfriend a blow job for the first time two nights ago but he didn’t cum cuz we got interrupted for a while and by the time we got back to his room it was like 5 am and we just passed out last night I go down to give him another one and he goes idk if I can cuz of last night and rejected it so we just went to bed I have no idea what this means has anyone had this happen to them or know what this means??