[Ruth]

If I was Preston's girlfriend he would be unceremoniously dumped when he got out of the house. Seriously, can he not understand that his behaviour must be very upsetting for her?

I agree with cc100 - they will probably lose touch when they get out of the house. In any event, I think Preston would soon get bored of Chantelle - he's far more intelligent than her, and I would think she could get quite irritating after a while.