Mark Zuckerberg & Priscilla Chan

Way before Facebook billions and being responsible for a cultural phenomenon, Mark Zuckerberg was just a college student who fell in love with another student he met at a frat party on campus. That other student was aspiring med student Priscilla Chan.

He was so smitten by her that after his social network blew, he still pursued Priscilla, even inviting her to stay in his Palo Alto house while she was studying at the University of California. They eventually got married in Zuckerberg’s backyard and currently have two children. Priscilla also earns her own way and still practices as a pediatrician. They also started the Chan Zuckerberg Initiative.