I know some people say it’s great fun and improves their relationship but I have real trouble believing that the majority of people don’t feel at least a bit of angst and jealousy. And if you don’t, do you really love your partner?
Also, I think it’s usually being driven by the man and the woman is afraid to leave her partner.
The ones I know about ended in tears. One situation, the man invited his friend into his and his gf’s bed and a year later the gf moved in with the friend.
Other one was driven by the man of a married couple but the woman went along with it until she realised that she didn’t like having sex with seedy men (because most swingers are not great looking). So they stopped but the husband carried on thinking about it, ended up cheating with sex workers = end of marriage.
i feel like people think it’s cool or something 🤷🏻♀️ we can all have fantasies but actually doing it is usually a shit idea imho.