<human>: So, I [18F] have been working at this place for the past few months. Recently this guy [20ishM] started working there and when we met it just seemed to click. He's funny, nice, and super cute, although a few years older than I am. Whenever we work together we're always chatting, making jokes, and whatnot. Tonight I went to our place of business with friends, and afterwards just decided to hang with him for a bit, which my friend's persuaded me to do. We joked around and talked, and he asked me if I found someone to go with to a new movie that just came out (sidenote: I was complaining a few days ago to him that I didn't have anybody to go with me to the movie), I said no, and we decided we would see it together sometime this week. Based on all the signals my friends picked up, it seemed like it was into me. 

Anyways, I log onto Facebook tonight to shoot him a message about the movie, and I see he was recently tagged in a relationship post with the girl who he's dating. Awkward. Of course now I'm all embarrassed because I guess I was picking up on all the wrong signals, but even my friends said he seemed into me. So now I guess we're going to see this movie together in a few days, and we even work together tomorrow! Ahh what do I do? I feel so embarrassed and stupid now.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Like guy at work. Sensed mutual likeness. Asked him to see a movie with me. He agreed. Later found out he has a girlfriend. Awkward. What do I do now?