Hi guys, really interested in your words of wisdom here.

My husband has just one friend I don't like. She's a woman and as long as I've known him she's insisted on meeting him without me - not just her and him, she meets him together with a group of a few guys. They all know each other, and their partners are never invited. Neither is her own fiancee.

We both have our own friends and regularly meet up with them separately, but there's something about her that really winds me up, I think largely due to the fact that early in our relationship I saw a text where he suggested inviting me to something she was arranging and she'd replied to the effect of 'its not an other halves thing'. She came to our wedding, and I find her nice in person, and have organised once or twice for us to meet up as a couple with her and her fiancee. However no matter what I do, when she returns the favour I'm not part of it, and I know I'm not welcome to join.

I trust him, but I do find it hurtful, and also kind of grating. She's very flirtatious and clearly relishes the attention of a whole group of men with no others involved.

I've told him I find it annoying and he agrees it's weird but 'that's just what she's like'. How would you proceed?