He hasn't been chained to anyone!!!
He's followed several female's around the house like a love-sick puppy (or more like a young boy who isn't used to getting female attention and has certainly made the most of it when the opportunity has arisen!).
He's been like a zombie since Harry left the house, counting down the minutes until they're reunited. He said yesterday that he was gutted that he hadn't told her enough how much she meant to him! I think the guy's very possibly in love (or In Lust at the very least!
).