Welcome to the Smart Set. Every morning we bring you the gossip coverage, filtered. Today: The Mad Men star is not a fan of her ex-husband's jokes, a tennis pro claims Dennis Quaid absconded with his date on Valentine's Day, and Rihanna's dad wants his daughter to give Chris Brown another chance

Why did Elisabeth Moss and Fred Armisen split up after just 8 months of marriage in 2010? Hockey season-long celebrity marriages are nothing new, but this break has always seemed particularly odd. There's been chatter that Moss' devotion to Scientology somehow drove the couple apart, but in a new Page Six Magazine interview, Moss blames Armisen -- and by extension his style of comedy -- for the split. For added context, here's the entire passage:

"It's so hard to talk about," she says, growing quiet.

"One of the greatest things I heard someone say about him is, 'He's so great at doing impersonations. But the greatest impersonation he does is that of a normal person.' To me, that sums it up."

She leans forward, chin in hands and brow furrowed, as she confides all this in a low, measured near-whisper.

"And I think that's...that's it," she says, releasing a drawn-out giggle-sigh. "I've never told anyone that. And I don't want to waste any more of my life talking about it."

Weird! But also probably counterproductive: she's going to have him thinking he's Peter Sellers. [Page Six Magazine]

Nicole Polizzi -- aka, Snooki from Jersey Shore -- has confirmed she is both pregnant and engaged. This is not good news for MTV, since Jersey Shore depends a great deal on Snooki drinking and cavorting and yelling, something pregnant women really can't (and shouldn't) do. The network has yet to greenlight a sixth season of the show, and a source says they're considering auditioning "a Snooki replacement," who hopefully will be called Snooki Deux. [Fox 411]

This is something you don't see every day: the very married Dennis Quaid is being accused of poaching the lady friend of a tennis pro named Sascha Bajin, who also happens to be Venus Williams' practice partner. Bajin made the claims on Twitter in the wee hours of the night on Valentine's Day, though the posts have since been deleted. But the story goes that on Valentine's Day night, Bajin and his unnamed date attended a karaoke party at Williams' house in Los Angeles. Later, they went to a bar for a drink, and bumped into Quaid. The three got to talking, and somehow over the course of the conversation -- per The New York Daily News -- Quaid "seem[ed] to have convinced Bajin’s date that he wanted her as a doubles partner." Get it? At which point, Bajin claims, he drove his now former date and Quaid back to his hotel and the pair exited the car together. In one of the deleted tweet, Bajin explained he "just got Quaided." Odd story on a number of levels. A rep for Quaid suggested "someone's imagination is getting away from them," since the actor was "with friends that night.” She also adds he's "still married" to his wife Kimberly. [New York Daily News]

At least one person thinks Rihanna should get back together with Chris Brown: her father, Ronald Fenty, who in the new issue of Heat magazine -- which doesn't seem to be available online-- says the man who did this to his daughter is "a nice guy and everybody's entitled to make mistakes in their life." Oh good grief. This was the same interview where he noted his daughter looked "a little fat" the last time he saw her.[Heat via Page Six]

In media-type movings: Salon has hired Vulture Deputy Entertainment Editor Willa Paskin to be the site's new TV critic. She replaces Matt Zoller Seitz, who left to take the same position at New York magazine earlier this year. [Fishbowl NY]