Legitimately though, how does this Jo Bro snag so many hot chicks? We're baffled!

Gigi Hadid couldn't hold back her affection for boyfriend Joe Jonas on a walk in Hollywood on Monday, and we honestly don't understand why the Sports Illustrated stunner is dating this washed up boy bander when she could easily be dating modelizer Leonardo DiCaprio! We think she's just young and doesn't know any better!

We hate to be mean, but the blonde bombshell is a good foot taller than her man, and her career is on fire while his is in the rear view mirror. Time to trade up, girl! The pair hit up pal Kylie Jenner's 18th birthday over the weekend, and it's rumored that Joe's more famous brother Nick is dating Kendall Jenner, so the circles of Hollywood's young "It" crowd seem to be blending at a rapid rate.

Gigi, please take our advice and go for Ben Affleck or some other A-lister! This relationship is a waste of time!