For some people, jealousy isn’t a problem: they work on the assumption that someone will be faithful until proven wrong.
If this is you, count yourself lucky. Sure, you might get an almighty kick in the teeth now and again, but at least you’re giving relationships the best chance they’ve got to succeed.
Then there are the rest of us: the battle-scarred.
If you’d rather sign over your firstborn than trust your partner, one of two things has happened. That