I just found out a couple of days ago that my husband has been exchanging pornographic pictures and videos with some girls and he engages in dirty talk as well with them.
I felt so disgusted and cheated because on numerous occasions he's denied me sex.
This can be a grave idea in your husband's mind. I think you guys need to talk, councelling will surely help. Somehow, you need to know what is he thinking and to what gravity is his thoughts inclined towards such things. I am pretty sure this problem can be solved. Sometimes, old men have this paradoxical idea to have sex or share intimacy with nymphets. I think your husband might be suffering from this idea. It is still not a disease and any idea can be thrown out of mind.