Background is stepson is 9- DH and ex split when he was 1. They have 50/50 care.
Ex has never taken him on holiday (until last year) and always waited for us to book our holiday before going abroad with her boyfriend. (We've always taken stepson with us)
So after this had kept happening she hadn't told SS she was going abroad when he was away with us and DH told her he wasn't going to lie to him and that if she feels guilty about telling him then maybe she should think why.
Anyway- after this, she took him away for the first time last year. All good.
We've been away this week and I was walking next to stepson and we were talking about holiday places we've been. He asked had I been to Eqypt and I said no. He said he had. He hasn't.
I told him I don't think he's been to Egypt and he said no he has, it was really hot, the pyramids were amazing and he isn't in the photos as he took them of his mum and her boyfriend!
I left it but mentioned it to DH who was seething and now wants speak to his ex and tell her that he shouldn't be telling his son he's been places he hasn't and that he should be honest with him about going on holiday without him.
My Aibu is- I've told him to just leave it, is it really worth it? But he's adamant. So, should he speak to her about it?