My DH has been playing an character-based wrestling online game for the past 2 years while he works night shifts, and has met several good friends through it. They chat online 'out of character' and have met up as a group a few times (I don't attend).
He's become very good friends with his online tag team partner, a woman who lives abroad. He's told me (and her) that he fancies her, and she also fancies him. They've met twice face to face, once at one of the group events, where they kissed goodnight (with my and her partner's permission), and once when she and her partner came for dinner at our house.
I freely admit to being jealous of her, because I don't get to chat much with DH as he's usually asleep, and I look after our kids so am asleep when he's awake and so they talk more than he and I can. He's cheated on me before by having cybersex with another online wrestler. (We are mostly over it, and it's not trust that's the issue, more my discomfort).
He's recently stopped playing the game but has said he wants to see her again as she's become a close friend. He's also said on other occasions that he wants to cheat on me with her but won't sleep with her without my consent. I REALLY don't want him to visit or see her alone, even if it's for dinner, but wonder if I'm over-reacting, it just makes me feel really uncomfortable.