You know that feeling when you break up with John Mayer and you promise you'll never hook up with him again, but then you see him at a friend's dinner party a year later and you're like, dang!? Katy Perry does, because on Saturday night, John Mayer reportedly came back to her house and stayed until 4 p.m. the next day.

Before you criticize Katy, consider the fact that John Mayer is kinda hot now.

When John Mayer and Katy were together in 2013, he wore pants like this:

Now he looks like this:

I'm just saying, it's understandable.

According to the Daily Mail, "the singers made great efforts not to be seen together as they made their way into" the dinner party in Beverly Hills on Saturday. But "once the meal was over, the pair continued on to Katy's nearby home, where the source said John remained until 4pm the following afternoon."

Consider also that if Katy got back together with John Mayer, it would serve to further ruin Taylor Swift's life.

[Photos via Getty/Splash News]