We've been married 20+ years; the first half was stepparenting hell bc SD was skipping school, having sex and getting pregnant; sneaking out of the house with men, continual lies-just crazy things like that. I'd catch her and tell DH; she'd cry and deny it accusing me of being against her. He'd always say "my daughter wouldn't do that kind of thing" or "not my child". We almost divorced over her and DH's Disney parent attitude/lack of support. But after she left, things got much better and I've been pretty much able to put this behind me.