I've been dating a guy for 3 months now and at the beginning of our relationship we discussed sexual desires, fantasies etc. We both admitted to having an interest in or fantasy of having a threesome or possibly swinging with another couple. However, this was all prior to any real feelings evolving between us. Since then he constantly brings up sexual things in conversation (mostly via text). We can be talking about the weather and somehow he finds a way to mention wanting me with another girl. He watches porn at least 4 times a week and I'm assuming it's more often than I know about. We have had a few arguments about him constantly talking about sexual things and I have expressed how much it bothers me yet the behavior continues. He apologizes and says it won't happen again, but the following week he goes right back to saying the same things. The more I try to explain how I feel he seems to be very avoidant as he completely changes the subject. He denies having any sort of sexual addiction, but his behavior seems odd to me. Just last week while we were having sex he mentioned something explicit involving another girl. I tried not to get too upset by it, but it did bother me a great deal knowing he was thinking of that during our love making session. I feel there is a big difference between having a fantasy and actually acting on it. I do my best to try to fulfill him sexually, but it seems that he's always obsessing over his fantasies. Is this normal behavior or does my boyfriend have a problem?