I would talk to him about it. I hope it gets better.

Nope right out of the whole three-way relationship.

From what I can decipher, they seem to have parted ways on a good term with no grudges. And that’s probably why she even suggested this. May be they want to make the wedding kind of fun that way.

unless he has kids with the ex, I would be concerned with her active involvement in his and your lives! but even so, that's a weird 💩 ask and would not entertain! think twice before getting married to him!

Are you sure you want to marry this guy???

I can't imagine how short a time unit should be, to give me exactly enough time to think that one over with all the scrutiny it deserves.

You ought to send him back to her and move on. Nothing to see here, folks.

Umm WOW this screams all sorts of red flags ,like he was in a abusive relationship with ex , or there's still something going on between them or they are far to close to each other or even one or both isn't over the other one 🤔

Not to mention that this is something your father probably is looking forward to

If my fiance didn't shut that down I wouldn't marry him.