Should I talk to the boy who makes my friend cry?

MY FRIEND NOW HAS THE REPUTATION OF A CRYBABY BECAUSE SHE CRIES EVERY OTHER DAY AT SCHOOL BECAUSE OF HOW THIS GUY SAYS THAT SHE IS HIS BABY BUT THEN KISSES SOME OTHER GIRL IN HER FACE, I KEEP TELLING HER SHE IS A SIDELINE HOE AND NEEDS TO MOVE ON, BUT SHE DOES NOT LISTEN TO ME!!! WHAT SHOULD I TELL HER ABOUT THE CRYING? DO YOU THINK THERE IS ANYTHING LEFT I CAN DO TO MAKE THE SITUATION BETTER? DO YOU THINK I SHOULD TALK TO THE BOY OR LEAVE IT ALONE?

honestly, if I were you and were a real friend, I'd beat his asss.