Transition days are still hard for my oldest
We're 2 years into the split and my 16yo still gets grumpy/withdrawn on the day he switches houses. Doesn't matter which direction - he comes to me sullen, stays that way for a few hours, then loosens up. Goes to his mom's place, same thing. I haven't mentioned it because I don't want to make it weirder but I'm wondering if other teenagers do this? Or if there's something I'm missing about his emotional state. He says he's fine when I ask directly so I'm not super concerned but it's noticeable.
Don't mention it directly but maybe mention it to his mom? Like a casual 'hey I've noticed he takes a few hours to adjust on transition days, wondering if you see the same thing' - then you're not calling him out but you're both aware and can be gentler about it.