Can't sleep as I just found this a few hours ago. DH is a great man, we've been together for 13 years, married last year two beautiful DC 5 and 9. He's always been very supportive of me, helped get a degree so I could become a teacher, helps around the house, great dad. I don't know how long it has been going on for, I had no interest in reading too many details if all the conversations they had on FB. She's a mum from school, we're not friends, but my best friend is friends with her, she's married and as far as I would know lives a happy life. I don't even know how they "met" , but it seems that one day DH noticed her and started obsessing over her. Of what I can tell from their messages (there were too many of them), he's the one who pursued her and she didn't put any resistance. I read how he called her "possibly the most beautiful human being on earth" for instance. At some point they started sexting, explicit messages telling her what he wanted to do to her and a photo of his erection. As far as I can tell, they actually haven't slept together but it seems like they both want/plan to. I don't know how to move forward from this. One part of me says it isn't cheating "nothing" has happened but it's not just the sexual content that upsets me, I'm so heartbroken he's so infatuated by her and that he actually pursued her. I never thought he was that type of man. I also see this woman at the school gate I'll have to control myself not to slap her.