Friends with benefits

Question: I was in this friend with benefits thing for the very first time. He told me that he’s with someone but she’s giving him a free pass and that he’s not ready to commit. We said we’ll be honest with each other. I went on vacation and find our that he hasn’t been honest with her. He never told her what he’s doing so i ended it because I feel like he’s having his cake and eating it too. I realize that there’s nothing I’m gaining from this but sex and I need more then that. Was I hard on him?