So the Sarah Silverman-Matt Damon "f*ckng" was for laughs, but the July breakup was real; Silverman's awkwardness on Jimmy Kimmel Live in October was staged but the couple's reconciliation was real. This latest breakup?
Actual, or setup for a joke? It's confirmed, anonymously but by Us Weekly and then People, so probably as real as it gets between two Hollywood celebrities and their dualing phalanxes of "people."
In other words, they waited until after the Oscars. Wouldn't want any "plus one" guest-list awkwardness at the afterparties! (Judging from the Vanity Fair Oscar-party pic above, they both knew the fix was in.)