Help??? Should I say something???!?

Theres this guy that liked me awhile ago and i liked him but this girl screwed things up 4 us, and noww hes mad and all pissy at me and not her. she likes him i dont like her anymnore. like i said he doesnt know what she did , hes on fb i really wanna say something but dont want to look like a ***** to him (still like him) and he keeps being an should i explain to himm what happened?:?? please help im in a hurry b4 he gets off! or should i just not say anything???