It’s possible Manley has an issue with Marliya going on holiday with Mia and whatever man she’s with. Mia probably needs Manley’s approval anyways to take her out the country as more than likely he’s on the birth certificate and has parental responsibility and we know how petty he can be
I think with Mia she’s always going on what seems to be lavish vacations outside the country with boyfriends but when she does take Marliya it’s usually inside the country on slightly more modest getaways or with Mia’s friends which I find a little strange (cause Marliya usually seems to be the only kid there)
I do side eye her for not going abroad more with Marliya and if she times it right, she can definitely bring Marliya without breaking the bank or pulling her out school. Marliya is old enough where I think she’d enjoy it and remember it