My girlfriend says I'm cheating by watching porn and thinking about another girl. I told her I'm not cheating just by having a fantasy about something and asked her if she fantasizes about other people, and she said no. I call bullshit and she is too controlling sometimes. We've been together going on 2 years now and I don't know if this is going to work long term with her trying to control what I watch and fantasize about. It's like she's trying to control my thoughts and make me feel guilty just for thinking about things or watching porn when I try to watch it discreetly.