You can do it! I know it's tough, I've never been married, BUT I have had an ex I was engaged to on and off that I couldn't let go. Soo i do know how tough it is to not want him back.
We were on and off since I was 14 and he was 16 I think. took me a little over a decade or so to finally move on.
He did fight for me in my mid 20's after changing and realising he took me for granted but in the end I didn't love him like I did anymore so it was too late. I let him go telling him that he's doing nothing wrong things are great but I can't string him along, he deserves better.
Of course he tried to fight for me again but I wouldn't have it. Told him no. He did give up eventually.
we don't see or talk much anymore. only once or twice a year on his birthday and sometimes Christmas. Just a short few texts and that's it. Honestly I should have just stay friends with him we didn't fight as much and were better for each other as friends. we bought the worst out of each other in a romantic relationship.
But anyway enough rambling on- Try blocking their numbers if they keep sticking their nose where it doesn't belong or get a new number. Refuse to see them. You have a right to divorce someone that doesn't respect you. Seems to me they only care about how other people would see them because their family member can't keep his wife.
Best of luck in the coming weeks and months. Allow yourself time to grieve don't expect yourself to move on quickly. It would be so much simpler if we could move forward quickly but we can't.
Also remember that there are people to talk to when you need to vent to someone you're not alone.