…her BFF Courtneney Cox! The famously single actress hates the romantic day, so has arranged to have a girl’s night-in with her former Friends costar Cox, who recently split from husband David Arquette.

“Jen is not short of admirers but she’s come to hate Valentine’s Day,” a source said.

“And with Courteney still feeling vulnerable after the breakdown of her marriage it’s the perfect time to skip the whole thing and have a girls’ night. They’re both looking forward to it.”

Aniston, 41, recently admitted she feels “cranky” if she doesn’t drink enough water.

“I don’t really have any beauty tips but drink a s**tload of water,” she said.

“I say, if anything, that’s the one thing I’ve noticed with my skin. If I stop drinking water, I dehydrate badly, and I get cranky. Water really works.”