Ali Fedotowosky left her new boyfriend Charlie Ritchie at home Friday night and was solo on the red carpet of the OK! magazine pre-Grammy Awards bash in Hollywood.

RadarOnline.com broke the news that late last month Ali was partying up a storm with a new hunk in Cabo San Lucas, where she was vacationing with her sister and several girlfriends.

Well that didn't take long!

Just a little over two months after announcing she'd ended her engagement to Roberto Martinez, Ali Fedotowsky was partying the night away with a new guy, RadarOnline.com is exclusively reporting.

Ali Fedotowsky is single and ringless!

RadarOnline.com can exclusively report that the Bachelorette star, who called off her engagement to Roberto Martinez earlier this week, has already returned her $50,000 ring to jeweler to-the-stars Neil Lane.

PHOTOS: Ali Fedotowsky Shows Off Her Engagement Ring

Another one bites the dust.

Ali Fedotowsky and Bachelorette winner Roberto Martinez have broken up after being engaged for a year, RadarOnline.com has learned.

"Ali Fedotowsky and Roberto Martinez have ended their relationship," their rep told People magazine. "As they go through this difficult time, we ask that you respect the couple's privacy."

Bachelorette Ashley Herbert’s romantic proposal Monday night on the finale of ABC’S The Bachelorette brought another bride-to-be to tears – Ali Fedotowsky, who told RadarOnline.com that she wept watching the engagement on TV.

“It was intense, I feel like one minute I was really angry at the TV because Ashley’s sister wasn’t being the most supportive,” Ali said during an exclusive video interview.  “I was crying because poor Ben F was so torn up.  It was heartbreaking to see, then I went to tears of happiness because Ashley and JP are such a good couple!”

What better way to get into season 7 of The Bachelorette then to take a look at the most smokin' hot contestants in the history of the show, as well as its' 'brother' show The Bachelor? 

PHOTOS: The Sexiest Bachelors & Bachelorettes -- Stripped Down!

RadarOnline.com has all the most bombshell bikini babes and hunks and trunks from the popular reality show. 

One of the sexiest contestants ever, Trista Ryan starred on the first Bachelor but failed to get the final rose.  After, she went on to star in the first Bachelorette, where she fell in love with beyond hunky Ryan Sutter.  The couple married and have made two beautiful babies.

Bachelorette beauty Ali Fedotowski got banged up in a kayak accident over the weekend and had to be taken to the hospital for treatment.

Fedotowski was kayaking with her fiancé Roberto Martinez and some friends in La Jolla, California Sunday when she fell into the water and hit her head.

The pretty blonde took to her Twitter account to tell her fans about her hair-raising experience.

After spending their first Valentine’s Day together as an engaged couple, Bachelorette Ali Fedotowsky and fiancé Roberto Martinez are planning to walk down the aisle in early fall, RadarOnline.com has exclusively learned.

Although Bora Bora holds a special place in their hearts (that’s where Roberto proposed!), a destination wedding to some exotic locale around the world may not be in the future. It looks like the east coast native prefers a west coast ceremony.

“She would love to have an early fall wedding in California,” says a source close to the reality star.