The love that Kourtney Kardashian and longtime friend Travis Barker have had for each other has officially crossed over into the romantic kind. The 41-year-old proclaimed her feelings to the Blink 182 drummer in a handwritten note reading “I love you,” that he shared on his Instagram stories. The feeling is completely mutual, as “Travis is definitely in love with Kourtney and he has been for a while,” a source close to the couple tells HollywoodLife.com EXCLUSIVELY.