Friend group - guest invite drama

I wouldn’t invite her if you don’t like her. You don’t have to feel like you need to invite her if you don’t want to

Do you think she's likely to come? If not, I'd probably invite her to avoid drama. If she's likely to come, I would think carefully, but lean toward not inviting her.

Leave her out. Unless you and her personally were buddy buddy then don't invite her.
The last two years of college I was close on and off with one of my three roommates. The other two are invited and one is my MOH. I felt bad initially with the thought of not inviting her but really reflecting on our friendship I think we just would vent to each other sometimes and tried to be nice to one another being under the same roof. We haven't kept in good contact since graduating a few years back. The other two girls I skype with or meet up with when I'm back in NC (live in TX now). Your wedding day should have those you do actually want there, not those who might dampen your day. Though to be honest we have some family on mine and FH sides we hope are unable to attend 😅😅

I wouldn't invite her. But I also wouldn't care if it created drama. I wouldn't hesitate to put a stop to drama.

You aren't real friends with her, so there's no need to invite her. Don't feel guilty about that. No one invites all their acquaintances and that's exactly what she is.

I don't think you should, but I understand why you're debating. Of course it will be awkward if you see her again after your invites go out, but if you can get past that, then don't bother inviting her or anyone that won't add joy to your wedding day.

I had a similar situation and my biggest reason for not inviting some people was on one of the happiest days of my life, if I look up and see that person will I be tripped up thinking something like "ugh why are they here I remember when they said this mean thing", etc. That may be a childish way to think of it, but it helped me.