Last fall, Sean Rad told Bloomberg Businessweek that he met his girlfriend of four months on Tinder, the same dating app where he serves as CEO. That young lady, who went unnamed, is 20-year-old Alexa Dell, the daughter of beleaguered billionaire Michael Dell. Alexa made headlines in 2012 when she turned up on Rich Kids of Instagram. Rad was 27-years-old as of September.