This has nothing to do with jealousy....what you are dealing with on your H's part is emotional infidelity.....no different than if he were cheating on you physically. People try to justify this kind of crap by is just being their personalities BUT in reality there is a serious lack of self discipline on your H's part. If he were truly faithful with you (emotional or otherwise) he would not allow himself to even get involved in situations like this.

I would not tolerate that in my marriage ever. If marriage counselling can not iron out this issue & he still feels he is right I would end the marriage immediately....because the next step will be cheating on you physically if he can get away with this.