The 23-year-old singer is currently on probation for his attack on Rihanna in 2009, reported Daily Mirror.
"I already had two girls at one point. It was honest. I'm at that point (of being faithful)," Brown said in a radio show 'Breakfast Club'.
Brown believes their relationship was saved due to his honesty with Rihanna.
"Of course it bothered me. We came clean and lay it out on the table, say it as it. Come clean," he said.
After splitting with Brown in 2009, Rihanna dated baseball star Matt Kemp and rapper Meek Mill and Drake.