Advice needed... kind of long.

I have a best friend that’s a guy who has been in my life since high school.

I also have a best friend that’s a girl who I’ve known for about a year now.

I don’t have time for a lot of friends. I really only keep these two as my close ones. My husband and my family are pretty much my life otherwise.

I met my girl bf through my guy bf bc they dated briefly. She is notoriously anxious and a ghoster. She ghosted my guy bf after dating him for a couple months, then they became friends and he introduced her to me and we hit it off. Our daughters are now best friends.

Girl bf started dating this guy two months ago. After about a week she started telling me she thought he was being shady and he was giving her anxiety. I listened pretty much since day 1 about all the red flags she was seeing and talked her through it and my husband, guy bf and I would always support her and hangout with her when she was down.

Guy bf has been in love with her the entire time. But he respectfully keeps his distance and only talks to her when she talks to him first or when we all hangout. He’s never been pushy. He’s really the best guy.

A week ago girl bf finds out that the guy she was dating was indeed shady when she got sent screenshot after screenshot from his ex about how they were still sleeping together and how when she moves back to town they’re going to be together (they have a daughter) and how they both can’t wait to see his and my friends relationship status gone on Facebook.

Girl bf breaks up with him and talks to me for a week about how she loves herself and has more respect for herself than that and how he doesn’t exist to her anymore.

I supported her the entire time. Meanwhile she started leading on my guy bf (who’s also my husbands bf) for the week that they were broken up and made out with him and everything.

Suddenly yesterday she tells me that she’s back with her bf and how she wants me to forgive him and give him a second chance because she loves him and misses him 🙄

I tell her I love her but I think she’s making a mistake.

We’re having a Halloween party and she asked if her and her bf were still invited.

I talk to my husband and guy bf and they voted that she’s invited but her boyfriend isn’t for these reasons:

-we’ve never met him and we’re not the kind of people who are great at pretending like nothing happened.

-we care about her and it would be hard to be nice to him knowing that he was cheating on her (and even swore on his daughters life that he wasnt)

-my guy bf is really down bc she led him on again. And he’s been my friend for much longer and is The Godfather of my kids. I don’t want him to get down at the party and feel weird bc she’s there with her bf. (She is a big PDA person)

-my husband and I don’t want to worry about what’s going on between them three because we want to enjoy ourselves and stay drama free.

I let her know nicely that I would prefer that her bf not come to the party, and if that means she isn’t coming I understand and I love her.

She said... yeah I’m not coming either but thanks anyway no worries.

I don’t want this to end our friendship. I’m not saying that in the future we wouldn’t want to get to know him bc it’s her life and I’m her friend, but just right now for the party I’d rather him not come.

Am I in the wrong for not wanting him there?

Any thoughts or advice at all on this situation?

Thanks in advance.