What was he trying to do ?

A couple days ago my date and I went to the movies and we ended up being the only two in that particular theater. We started cuddling somewhat and he was telling me how hot I was and how he couldn't focus on the movie and he kept rubbing my legs and telling me how soft and smooth my skin was. I noticed that during the movie he kept taking glances at my legs and I looked out of the corner of my eye and I saw him pull his shirt over the top of his pants and he was crossing his legs. Was he trying to hide an erection ? Lol no rude answers please, Thanks :)