Monk confirmed the break up on Instagram, explaining that the pair, who met on The Bachelorette, tried to give their relationship their "best shot" but it just didn't work because they are "just very different people".
Monk decided to reveal the news via social media because of how publicly they entered their relationship.
The 38-year-old also explained that everything she went out to find on the dating show, including a family and love, was all real.
She also denied the existence of any rumoured contracts, stipulating that Monk and Laundy had to stay together for a particular amount of time.
"There were no contracts or pressure to stay together from anyone and remain friends," she wrote.
Despite her heartbreak, Monk has found the bright side of the whole experience.
"It taught my to jump out of my comfort zone in order to find real love and made me much stronger."
The singer finished by apologising to anyone who was invested in the relationship, "I hope i haven't disappointed anyone."