Mario And Karina Back On?

Say it isn't so! Karina Smirnoff may be giving Mario Lopez another chance--another chance to cheat on her that is.

The former couple was spotted looking very cozy this past weekend at New York's Bagatelle restaurant, according to PageSix.

A source tells the column, "They were super-flirty," and added that the pair were "very happy, kissing and cuddling."

Burn me once, shame on you. Burn me twice, shame on me. Will Karina ever learn? Once a cheater, always a cheater darling!