A lot. If she works out of the house or is there taking care of the kids, a woman's relationship with the contractor can get very cozy. Maybe they share coffee in the morning. She makes sure he and his guys have cool drinks on a hot day. And sometimes he's still there when she's pouring herself a glass of wine at the end of the day. He becomes part of her domestic routine, all the while discussing plans for how she wants to live in the future, down to the last intimate detail. He's probably been in her bedroom—lots of times. Not that you should worry too much, guys: It will all go south when he stops returning her phone calls. And that's one turn of events you can count on.