Reading Ren's face as he is, he softens in turn, though he still has a bad feeling; he's not used to walls being up with—well, truth be told, things often felt like that with Ren.

"Very well, then. Text me if you need anything. I'll try to keep the fussing to a minimum." Despite his small smile, he'll be paying attention, and he'll know if Ren leaves the building.