Any advice is greatly appreciated. Have never clapped eyes on the OW, even though my Ex has been with her for 18 months. The Ex is busy next Sat, so he is getting his girlfriend to come round to collect my DS, to go to Dads for the nite. Do I smile sweetly or do I tell her what dangerous water she has got herself into and its only a matter of time before he starts getting aggressive and treats her the way he treated me. Mentally and physically abusive . I guess i should say nothing as it will only look like sour grapes. She may well be finding out herself anyway by now.