I got home from work this afternoon earlier than normal. My exH was dropping our 16 yo at home after school to get changed before taking him back to his house. Our relationship is very much 'tolerate and be polite' we're not friendly let alone close. We might have a quick chat on the doorstep at the most. Anyway when I got in, he was upstairs in DS' bedroom in our house. DS looked quite embarrassed and it was really awkward when he came back down but I didn't say anything. I've asked DS what happened and said I'm unhappy about it. Apparently his dad just followed him in and hung around downstairs before going upstairs. He didn't ask him in or anything. He said he didn't want to be impolite by asking him to wait in car or even in the hall. Would you say anything? If my DH knew he'd be livid!