Comedian Russell Brand reportedly regrets filing for divorce and leaving Katy Perry…but don’t ask him about it.

Pictures of Katy Perry and Florence And The Machine guitarist Robert Ackroyd must be taking their toll on Russell Brand.

Grazia magazine reports that Brand is “seething with jealousy,” in fact.

After just 14 months of marriage Brand filed for divorce from Perry in December 2011 citing “irreconcilable differences”, but is now regretting that decision.

Brand has reportedly sent Perry a long email admitting that he “gave up” on their marriage and that filing for divorce was the biggest mistake of his life.

Katy Perry tweeted yesterday, “Dear God make me a bird, so I can fly far far far away from here.”  Coincidence?

In other Russell Brand/Katy Perry news…

Brand has hit back at an audience member during his stand up comedy show in New Jersey.  The heckler, annoyingly and repeatedly shouted Katy Perry’s name to the comedian while he was on stage, mid-act. 

Clearly having enough, Brand lashed out at the man.

"It's you is it? Oh dear... I thought this guy is confident, probably because he's incredibly handsome. But look at you! You look like something that has fallen off the outside of a church. And what is it that you have rattling around your mind, some bizarre combination of alcohol and idiocy ... some cocktail of nothing? And yet the confidence to continue shouting. They say of course, don't they, that empty vessels make the most noise. What an enormous echo of nothingness from you."

That’s not all, “keep your lips firmly, firmly clamped together. Because everything that comes out of your mouth, from your idiotic announcements to your disgusting halitosis that's coming through this room, is an abomination," Brand added.

Check out Russell Brand losing it at an audience member:

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Check out Katy Perry’s possible new beau: