Would you be mad?

I was flipping through channels on the tv and my SO was sitting with me when he told me to go back, so I did thinking he saw something he was interested in or looked good. Well I went back and asked him which one and he said and I quote, "I saw tittys". So I got extremely upset with him because I'm his SO and I should be the only girl he is looking at like that.... So was I right for getting mad? Yes or no? Comments??