He's looking through his window not her window. LoL! Unless he was looking through his window into her window, but that's not how my story went in my head and she should close her blinds anyway. This sentence to me is about a man looking through his window either in his office or at home and remembering how beautiful the woman was that he saw or he could be looking out at her as she walked across the street or something? Either way he feels like she's the one for him and now he has to figure out a way to get to talk to her. A woman that beautiful is going to be hard to get in his mind. "Getting her number was going to be tough." Later on in life after the divorce he will have learned not to chase after "Beautiful" women that he sees through his window, but rather to form mutual relationships with women who are interested in him as well. I hope that clears it up. Thank you.
Benedict Arnold 