There's no way in, unfortunately, and sitting on the windowsills mostly just provides a view of heavy drapes, though the one crack between them shows a normal-looking living room and kitchen, albeit with books and papers everywhere, and the only dishes ever in the sink look more like they belong in a science lab than a kitchen.

If she's still watching when he makes it home the day she eats his offering, she'll see him obviously delighted-- and see he's got a mouth full of uneven, unusually sharp teeth when he grins.

And the next day, the food is placed out only after he gets home, though it's far from any doors and windows, so it isn't likely he'll be aiming to jump out and grab her if she comes to eat it. He stays in that night... with frequent glances to the windows, hoping to catch sight of her.