Long story short. Been seeing my DP for over 18 months now. Before we met he used to game online a lot and had a couple good friends online, one being female. They have never met as just online friends but they text as well. Once he split with his ex this female friend made it known she liked him. She lives far away and he said it wouldn’t work. Anyway I come along and we are very happy. I know about her, I know she likes him I know they text. He says they are friends. He says he has never given her any reason to think he likes her other than as a friend. Yet she sends him photos of herself dressed up to go out or videos of herself singing and once sent him a picture of herself topless tho she said it was a mistake. I have got quite irritated over time about it saying to him I think it’s out of order she does this knowing he is with someone. He is now planning a trip to go see her and the other gaming friend he has. I’ve been a little concerned about it but I trust him and he reassured me they are just mates and he loves me. But then the other night after he’d been out with mates he comes home and says to me that actually he has never ever told her about me. That as far as she knows he isn’t with anyone. He says he didn’t want to hurt her feelings but he is going to tell her now. I’m flabbergasted and confused. I was also very very angry with him but he says that I’m over reacting and that he’s done nothing wrong except try not to upset her. I’m really not sure what to think. He’s going over to see her in 2 weeks. I feel a little sick. He’s just moved in with me and my kids and his kids have all met and get on. I’ve invested so much in him and I can’t throw it all away. Am I over reacting to be furious and feel betrayed and made a fool of?