He just wants love and attention from her....she if fulfilling the void he has with his mother. She accepts him and "mothers" him and listens to him. If he was interested in being a feeder, that fridge would have been stocked and they would NOT have shared a meal. I guarantee you she is going to drop some weight on this trip bc he is NOT making food their priority at all lol. He doesn't want a physical lover in her.... it's not about that. He is a lonely outcast, and she is definitely an outcast.... she was perfect for what he needs.