I am deleting this

Unless there is more to this story, he is being completely unreasonable. He should never ever put you down. If he is paying attention to porn, not you, that is a problem. I don't know what to say about the other girl - without being there its very hard to get a good picture of what is going on.

Maybe someone will have advice on what you can do - I don't have any ideas.

sounds to me like he maybe interested in including this women in some sort of sexual fantasy with the two of you. have you asked him if he is attracted to her in anyway? if that is something he may be interested in doing then maybe you should put your foot down and tell him no way. it is just my opinion about this matter that when you do decide to include another person into the relationship it tends to cause some jelousy and friction. i personally could not share my husband in anyway with another woman due to the fact that i would assume alot of things like maybe he likes her better or she make him feel better than i do and so on. i wish i had a solution for you. good luck, Lynne