Monica's career came to a slow down in 1999 due to relationship problems with her ex-boyfriend Jarvis Weems.
In July 2000, the couple were together at the graveside of Weems's brother, who had died in an automobile accident at age 25 in 1998, when Weems, without warning, put a gun to his head and committed suicide. "Afterward, I felt, 'What else could I have done?' You replay that situation over and over and you switch it around: Maybe if I had said this, or if I would have done that,'" she said in an interview with the The Cincinnati Enquirer the following year. "It's just something that it's never possible for me to go back and change."
Monica met rapper Rodney "Rocko" Hill, a former SWA officer and real estate manager, shortly after her ex-boyfriend Jarvis Weems's suicide in 2000, a time which she described as her "weakest."While the couple soon began dating in fall of the same year, they ended their relationship in 2004. A few months later, Monica and Hill revived
their relationship and she became pregnant with their first child. On May 21, 2005, she gave birth to their first son, Rodney Ramone Hill III. Monica and Hill became engaged once again on Christmas Eve 2007, just a few days prior to the birth of their second child on January 8, 2008. The son was named Romelo Montez Hill, named after Monica's younger brother. The two later parted ways.In June 2010, Monica met NBA playerShannon Brown when looking for someone to play the love interest in her video for "Love All Over Me". Monica later announced her engagement to Brown via her Twitter account, posting a photo of a rose-cut diamond ring.On November 22, 2010, the couple married in a secret ceremony at their Los Angeles home. The marriage, however, did not become a matter of public record until January 21, 2011, when Brown told the Hip-Hop Non-Stop TV-Show.They had a second wedding ceremony for family and friends in July 2011. On September 3, 2013, Monica gave birth to her third child, Laiyah Shannon Brown.