How not to invite someone

Hi! Just a disclaimer that I know this is petty and I know it's childish. I'm in a dungeons and dragons group with my fiance. We've made some good friends in this group since it began as a group of strangers. But I don't like everyone I. The group.


In particular, I don't like the group "mum". I just don't get good vibes from her and I often keep myself away if I can. I'm wondering if there is a way of inviting the people I get along with but not her without it being awkward or like I'm trying to target her. I'm honestly not as there's another person we won't be inciting