Travis Barker is Definitely Smitten with Kourtney Kardashian, and Here is Why We Think So

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The love that Kourtney Kardashian and longtime friend Travis Barker have had for each other has formally crossed over into the romantic sort.

The 41-year-old declared her feelings to the Blink 182 drummer in a transcribed note reading “I love you,” that Travis shared on his Instagram updates.

No doubt, the feeling is totally mutual, as "Travis is unquestionably in love with Kourtney, and he has been for a very long time now," a source close to the couple revealed.

"It's hard to put a specific date on it, though, because the love grew over time since they started out as friends, and it went from a platonic love to a romantic love little by little," the insider clarifies.

"He’s completely fallen for her at this point and tries to spend as much time with Kourtney as he can." The two have lived on the same block in Calabasas as next-door-neighbor for a very long time, and their kids even had playdates growing up.