Would You Cheat on Alessandra Ambrosio ?...or Ladies Would You Cheat On...(fill in blank)

VICTORIA'S Secret bombshell Alessandra Ambrosio taught her boyfriend a liquid lesson when she caught him making out with another girl at Marquee the other night. Male model Marcello Baldrini, whom Ambrosio has been dating for four years, was tonguing down another stunner at the bar when Ambrosio walked in and blew her stack. "Alessandra quite rightfully got upset and threw a drink in his face," an Elite rep told PAGE SIX. "She had to cool him off, after all." A spy at the club says the Brazilian couple started yelling at each other and were asked to leave. Ambrosio has since given her straying beau the boot.