Of course, one of Kevin's most attractive qualities is how much he loves his wife, Danielle. The two have been together since 2007, and their long-lasting love still gives me butterflies. While Danielle is a huge supporter of her husband, it's clear that Kevin is her number one fan as he posts sweet messages to her on social media and looks completely in love whenever they hit the red carpet together. During a recent press trip with the Jonas Brothers, he left her cards to open for every day he was away. Come on, that's straight out of a romantic comedy! Need any more convincing about how perfect these two are for each other? Rewatch their reality series Married to Jonas ASAP.