Ok, so first time poster go easy on me please….. bit of background so as not to drip feed, was with my ex for 20 years married for 14, 2 gorgeous DC’s one older one younger. Separated last year, Ex said he was staying with family member- was clear he wasn’t but took youngest DC to there for contact, on average a couple of hours a week, older DC has very limited contact ( an older teen their choice) has recently come to light ex is living with new partner and step child. Ex is refusing to say where he lives or who partner is, but wants to take youngest DC to meet new partner and step child, Aibu to be concerned about this?? I don’t want to be that Ex and really would in a perfect world like us all to get on, but I’m finding it difficult as if he’s purposely trying cause animosity.