Considering the starlet is one of E!'s main moneymakers, it almost seems like choice has been made!
BUT there's one other star who would like to join the contenders…
And if you don't believe us, just look how gorgeous they looked at the Valentino Ball on Wednesday night.
Diane was pure perfection in her pink Valentino Resort embroidered gown while Joshua provided some delicious arm candy in a navy Valentino tux.
Even her effortless wavy locks and his scruff looked good!
It's just not fair!
[Image via Getty Images.]