Too much drama

Here's something that happened months ago and it isn't related to anything, but I'll tell the story anyway.

Late one night I was walking down the path back to my apartment, and since I walk pretty fast when I'm alone I caught up with my housemate and his girlfriend who were walking in the same direction. Actually I didn't realize it was them until I was pretty close, as in, right beside them. And they were having an argument. The guy was all agitated and crying, and he shouted at the girl (in Cebuano) "Don't you see Mike over there?!", and he stormed off to the apartment. I had no idea what that was about, and I was too nervous to even face the girl, so I just kept walking on my own pace. That was awkard enough, but when I actually got to the apartment he was waiting in tears outside the gate, because he didn't have the key. I unlock and open the door and say "Umm.. here you go" and he says "Naw that's alright" and I say "Ok I'll just leave it open", so I do, then go on inside.

About an hour later he knocks on the door to my room and apologizes, and I'm like "Yeah whatever man, it happens, I understand". But really I don't understand, and we never mentioned the incident again. Haha...