Ali Fedotowsky & Kevin Manno - Bachelorette 6 - Discussion

LOS ANGELES, Calif. -- Former “Bachelorette” Ali Fedotowsky says her split with Roberto Martinez after their 18-month engagement was a decision they both came to together.

“The way we lived our lives on a daily basis was just really different,” Ali, who is now hosting “1st Look” on NBC, told Billy Bush and Kit Hoover on Wednesday’s Access Hollywood Live.

“We just found ourselves being unhappy at the end of the day and neither one of us wanted that for the long term,” she explained.

According to Ali, they both decided that it was time to part ways.

“It was 100 percent mutual, both of us,” she said. “When you try and you and try and it doesn’t work out, then it can be mutual, when you really have worked at it for a long time.”

The blond beauty explained that she commits herself completely to all of her romantic endeavors.

“All of my relationships actually, I will work so hard at them and make myself believe that it’s right when it’s not right,” she told Billy and Kit. “Every relationship that I’ve ever been in, I’ve stayed in until the very, very end.”

Adding, “We just didn’t work out.”

Ali Fedotowsky‏@AliFedotowsky
Ready to chat live on #VH1BUZZ. Tune in at 10am :) http://twitter.com/AliFedotowsky/status/190072745852276737/photo/1

Met up with @AliFedotowsky at the @OKMagazine offices! Such a awesome person! @rlevine816 #Bachelor http://twitter.com/leighblickley/status/189805275333664768/photo/1

Although Ali Fedotowsky admits that her and Roberto Martinez's split was "100 percent mutual," the former Bachelorette reveals that it would certainly "sting" if she found out her ex-fiancé had moved on with another woman.

"Of course it would [hurt]," Ali told Access Hollywood Live's Billy Bush and Kit Hoover of how she would feel if Roberto was dating someone else. "And I'm sure it would for him to," she added.

"I was so upset because I was photographed with someone... and I’m not dating the person. But I was just upset because I don’t want him to see that and feel like I moved on so soon."

Ali insists that the guy she was spotted out to lunch with in February is just a friend and that things "get blown out of proportion."

As for the end of her 18-month engagement to Roberto, Ali says it was painful for both of them, but they agreed that it just wasn't working out.

“The way we lived our lives on a daily basis was just really different,” Ali, who is now hosting 1st Look on NBC, explained. "We just found ourselves being unhappy at the end of the day and neither one of us wanted that for the long term."

But the blonde beauty admits she has no regrets and has always given her all to every relationship she's every been in.

“All of my relationships, I will work so hard at them and make myself believe that it’s right when it’s not right,” she said. “Every relationship that I’ve ever been in, I’ve stayed in until the very, very end.”

Adding of her and Roberto, “We just didn’t work out.”