What would you do? Ex friend drama

So I’ll try and summarize this the best way I can. 3 years ago I had a big falling out with close friends. Basically I made a mistake and all the apologies, groveling didn’t matter and to this day it still really hurts... but I guess it was a fun way to hang up on me and clearly our friendship meant nothing and people can’t make mistakes.. anyways My “friends” kept be around long enough to be in one of their weddings and basically iced me out after that.

My husband is friends with one of my ex friends boyfriend and since everything a lot has changed. this “friend” only will talks to my husband via text messages or while gaming. If I’m there and he’s with his GF or other friends we used to be close too he won’t even stop and keep walking, probably cause he doesn’t have the balls to stop and talk to a friend?

Anyways it’s not my friendship so I try and keep out of it. However we just got a wedding invite from these people, no idea why... we don’t talk really and after how they treated me and how they still to this day ignore me when they see me why would they expect us to accept.

Husband doesn’t feel comfortable going alone.. we aren’t friends on social media... I’m kinda thinking of just throwing away the invite and going on with my life... even though I know that’s kinda rude.. but I feel like it was a joke to send it in the first place, they didn’t like me then and they sure don’t like me now.

Trying to take the high road, also yes it would be fun to go to the wedding and get trashed however... I’m newly pregnant so I’d have to do that sober.. which I don’t think I could do.

Thoughts !!! Advice !!!!