Jennifer Garner might want to keep a very close eye on her husband these days. There's a new report that says ex-lover Jennifer Lopez was spotted getting very flirty with Ben Affleck at the Oscars this past weekend.

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According to E! News on Wednesday, the ex-couple, who were briefly engaged back in 2004, couldn't help but lock eyes if only momentarily during the ceremony.

The report said, "After Laura Poitras's Citizenfour won the award for Best Documentary Feature, Affleck walked over to Lopez, who was seated in the front row. According to ABC News, Affleck whispered something into Lopez's ear, and she playfully smacked his arm. After reuniting with Lopez, Affleck moved down the aisle and whispered something in Best Actor nominee Bradley Cooper's ear. The American Sniper star didn't slap Affleck, however."

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Meanwhile, there's a new rumor that says Lopez may or may not be getting back with her ex-boyfriend, Casper Smart.

According to TMZ earlier this month, the ex-lovers were spotted out and about in Los Angeles. Smart was at the Z Zegna & GQ event in Hollywood, where he hung out with Nick Jonas. Sources say that Lopez was quietly waiting in a car outside of the event for him, while trying to keep things on the down low.

Eyewitnesses further say that Lopez and Smart then went to Hotel Café in Hollywood, where they were caught by the paparazzi.

Both Lopez and Smart have denied through their reps that they are getting back together.

Tags: Jennifer Lopez Ben Affleck