DD's Dad and I have been split for years and we've both remarried.DD went round to see him this afternoon, he knew she was coming (she'd got the train down as generally he's too idle to come get her) and when she walked in he was on the sofa petting with a topless young woman who is definitely NOT his wife.
DD just froze and then ran for it - apparently he's phoned her since and left a message apologising.
Any ideas what to say to her?