Actor Matt Damon has finally broken his silence on best buddy Ben Affleck's engagement to babe Jennifer Lopez, insisting his longtime pal has never been happier.

"Even when he lost his virginity, he wasn't this happy," the Hollywood star quipped of Affleck, 30, in an interview aired on Extra last night.

Lopez, technically still wed to dancer Cris Judd, said of that doomed union in a recent interview with GQ magazine: "I think you're always a little bit surprised [when it ends] . . . Then you say to yourself, ‘Wow, this was so not it.' "

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