I used to get along with my SS & SD. Now that they're teens and especially since we got married, they have changed. Suddendly I'm the source of all their hatred. SS isn't sneaky enough to set me up. But SD is, so I'm constantly playing that game right back at her. Her mother is chronically ill and is getting worse. I don't think I can live with her all the time. She just visits for now. DH can't stand the SD for very long either, she reminds him of his ExW and it makes him angry. I have 3 grown of my own and didn't have these issues.