Mommy dearest? Ashlee Simpson, 27, is seething because her son Bronx, 3, has bonded in a big way with ex-husband Pete Wentz's new flame, model Meagan Camper.

They’re gorgeous, they’re rich and now they’re in love.

Hollywood’s hottest stars have more than just blockbuster hits to celebrate this year, as they’ve found new loves and are ending the year on a high note.

Perpetually single Jennifer Aniston finally has a boyfriend who seems to be the one. She went public with her Wanderlust co-star Justin Theroux in 2011 and they’re so serious that she bought a place in his hometown of New York and the two are shacking up on both coasts in a rented Hollywood Hills home.  Jen and Justin are inseparable, are often spotted in matching outfits and their new relationship seems to be one for the ages. Brad who?

Ashlee Simpson, who filed from divorce from her Fall Out Boy hubby Pete Wentz in February, has found comfort in the arms of a new man.

PHOTOS: Ashlee Simpson Packs On The PDA With New Beau Vincent Piazza

The 26-year-old singer and actress was spotted out in New York City last week with Boardwalk Empire star Vincent Piazza—and the two did very little to hide their romance, engaging in a full-on make-out session for the cameras.

PHOTOS: Hollywood’s Hottest Divorcees Bare All In Their Bikinis