"Oh no, I'm alright. I'm glad you had a good time." Gram waves her hand, turning as if to leave. Jon nearly let out a breath of relief, only for his hopes to be shattered. "And Jon, keep your door open, will you?"

It took a moment to place that bemused tone and comment, though when he does he hisses, "Gram." She was already walking away so he just continues heading up, too embarrassed to look at Martin.