I have been reading this thread with much interest. Although, I feel like I'm eavesdropping. lol My H has had many online relationships in the almost 10 years we've been together. I'm realizing from reading this thread why a lot of things were the way they were in my own behavior (reactions) and also in his.
Thank you for your openness. It is helping me a lot to have clarity although I am sorry you are feeling this pain. It's not a pretty thing, for sure.