I just need to vent ??

So last night I went out with the girls. We decided we would go get a piercing (I got my nose) and try a hookah lounge for the first time. I didn't tell my boyfriend about the piercing but I think he knew about the hookah. Anyway, I texted him while I was out last night and he kept reading them and not replying. I knew he was mad at me for something. But I don't know why. I got home late, so he was sleeping. I went to tell him (he lives in my parents basement) I was home. I work until 4 today and he works 4-10 so we won't see each other that much. So I left this on his door to be nice 
I texted him this morning saying good morning and a few snapchats and he just opened them and never replied to me. I texted him asking what I did and he won't tell me. And it's just frustrating ? I'm sorry. I just needed to vent.