What if your fiancé asked you to have an open relationship...?

1) They'd be my EX-fiancee.

2) If they'd been "thinking of it for a long time" but waited until NOW to mention it? See solution #1.

3) I wouldn't marry a "he/she" in the first place. (forgive a stupid joke, I couldn't help myself).

If he was so anxious to be in that lifestyle. It would concern me. Because, it would make me wonder is that what he wants to do all the time. Is go to these swinging clubs and meet weirdos to f... I have met people in that lifestyle. And half of them are a bit off their rockers. They don't think of the consequences with sex.

I'd hand him back the ring and tell him to go and find someone else to have an open relationship with.

I mean, I can understand anyone having cold feet before their wedding: it's a scarily big commitment. But 'Darling, I can't bear the idea of only having sex with one single person for the rest of my life'??? Duh. Dump him.

I would tell her that I wish her independance for the rest of her life and that of course without me now ... to be free without any doubt.

I'd conclude that my finance was trying to tell me that they've changed their mind and don't want to get married.

That said, if you want an open relationship, go for it. If not, you need to end things immediately.

First of course, I'd be pissed. Then after letting it all sink in, I'd politely hand back the engagement ring and tell him to pack his **** and leave

Major deal breaker, that is ridiculous. Stop this disaster before it starts.

I wouldn't marry them if they weren't satisfied enough with being in a relationship with just that one special person

Sounds doomed from the start, why have any relationship at all?

I'd kick he/she to the curb as fast as possible, and be grateful that no marriage took place.