Feelings for someone else?

I am 24 years old and have been married for a year and half. We have know eachother for 11 years now. We dated for almost 3 years. I convinced him to get married. So we eloped in vegas. Now after a year and a half I am thinking maybe we did get married too young, and quickly. The thing that is making me think this way is that i went off for the weekend to work on a movie set, without him. And started to have feelings for someone else. It was completely innocent. The guy knew I was married, we would talk about it sometimes, and he was in a serious relationship. But I found myself trying to be near him. A lot. I didn't act on my feelings. They were just there. Was this completely wrong?