[Rorkimaru]

Mark was inappropriate after the wishing well it's true but he's been avoiding Harry recently and the only time he was with her was when they were handcuffed together for the task (IIRC). He also didn't send her a wish because he chose not to engage her where as she has been reacting to everything he did over the past few days despite not being involved and sent him at least 2 wishes.

Mark isn't a shining bastion of maturity but Harry could have left him alone as he's been doing to her. The two of them are unbelievably toxic for each other.