Jon Gosselin's got one thing figured out: his love life. 

In fact, the Jon & Kate Plus 8 star shared why he's sure his girlfriend Stephanie Lebo is the one. 

"She is my best friend," Jon exclusively told E! News' Francesca Amiker at the April 25 grand opening of the Beverly Hills Rejuvenation Center's new West Hollywood location. "I have guy friends, but this is different. I confide in her with everything."