You are so out to lunch on this issue. The kids watching their dad beat up their mom twice weekly is not about putting romance on hold. We have a domestic violence website here that has a quickie escape key so that women looking at it can quickly exit if they need to. You are so incredibly wrong.
I think DinW is correct in pointing out that a series of mother’s boyfriends in a household is a recipe for disaster. The statistics confirm this, and the reality behind those statistics is worse still. It also leads - routinely - to early sexual activity for the girls of the family, and they are socialised into it, they don’t have much choice about that.