Porn Insecurities

I don't think there's anything wrong with it and I don't hate him for it or anything like that. But is it weird that my boyfriend occasionally watching porn while I'm at work on the weekends (I don't have any days off) makes me feel... insecure? It's pretty rare he watches it and he doesn't hide it, he's completely open with me about and wants to watch it with me. I feel pretty lucky but I can't figure out where the insecurity is coming from.