Actually, it shouldn't. Anything you can think of is basically jisged good or bad based on whether or not it meets expectations.

The expectation of a relationship is partnership. That's what it gets sold as (unless specified otherwise) and that's what it was accepted as (same).

If the agreed upon partnership isn't matching expectations, then it's not a good one and you'll end up with problems and lonely, maybe an addict. It's not pretty.