not this time

I just got an email from a housemate who was concerned that I didn't answer when he knocked on my door last night. He also thought I may have been crying in my room. While there have been occasions when I've ignored knocks on my door because I've been miserable and sobbing, last night wasn't one of them. I was actually watching The Station Agent, which might be my favourite movie, with the commentary on. The cast were obviously good friends and had a lot of fun making the movie, so the commentary was pretty funny. I'm guessing I was laughing at that, since I'm a lot more careful not to be heard when crying.
I'm glad I had a good excuse for my housemate, but I'm still worried that he thinks I'm depressed or something in general. I don't have an excuse for hiding in my room all the time and being completely anti-social. It's kind of funny though, that nobody ever noticed (or at least, said) anything when I was really miserable for a long time, but now that's I'm generally okay, he was concerned.