We likely all have ex-partners that we'd rather not talk about thanks to the awful ways we'd been treated by them. We may joke about them with our pals, but their actions may have impacted the way we behave today.
And your current partner's ex is usually off limits in terms of conversation, because you want to look to the future with them, not the past.
But one woman's ex-boyfriend pulled the ultimate betrayal on both her and his wife after he behaved like a "scumbag" and asked her to be a bridesmaid at his wedding - without even confirming it was ok with the bride, or telling her she'd be there.
