So I picked up my fiances phone and he grabbed it from me and said he had porn on it. It was a porn picture and he deleted it right in front of me. I asked him why he had it because we have been having a lot of sex lately. And he said it was a month ago that he had got it and I was at work. He said he was trying to imagine me but couldn't so he got the picture. I'm weirdly calm about it. Should I be mad?