Why Katy Perry and John Mayer Have a Hard Time Making a Relationship Work

By:OK! Staff

March 20 2013, Published 12:27 p.m. ET

Katy Perry and John Mayer are hot and cold when it comes to their relationship. The two musicians—who have been on-again off-again for almost a year now—have already split once. But there is one big reason why the couple can't make it work. Watch the video to see their relationship issue and why it probably won't change anytime soon.

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