I though that, but then it turns out he has a daughter from a previous (fling? i guess is the right term) so i dont think it's an arrangement.
I watched paris in love, and to me he seems like someone who is completely enamoured with paris hilton, the name and celebrity, rather than her. i think he likes the bragging rights or the fantasy or somethng. he seemed irritated by her a lot but like he was pretending he wasn't, and also he talks about how he doesnt care about her fame, image, name etc but it seemed a bit disingenious to me