The on-again, off-again Katy Perry-John Mayer relationship seems to be back on with Perry setting some ground rules for Mayer.

One of the rules Perry reportedly set was for Mayer to get rid of his old girlfriends' phone numbers. This obviously means he can no longer text them. Another rule? It's something simple and something most women probably want. Perry wants more dinner and date nights.

At a recent event at the Waldorf Astoria the pair weren't even hiding their affections with one another. It seems like Mayer may have picked up on Perry's hints when she told Vogue she was still "madly in love" with Mayer.

What do you think of Perry's rules for Mayer? Have you ever set any relationship rules?