My ex was abusive. First it was controlling behaviour, trying to alienate my friends and constantly making drama. Of course, it didn't end there and eventually she assaulted me, only to be 'offended' when she discovered I'd been talking about it with my friends. To the day I finally cut her out of my life she refused to accept she'd done anything wrong, it was me who was in the wrong as I'd
provoked her
Unfortunately for her I never blamed myself for her bad behaviour.
I just wish I'd had the sense to get out before things escalated, but I went into the relationship believing she was a nice person. It took a while to accept I'd been duped.