Between her music career and her rapidly growing beauty and fashion lines, Rihanna’s professional life is thriving. And it turns out her personal life is also in a sweet spot, thanks to her relationship with boyfriend Hassan Jameel. The ultraprivate pair (since 2017) are “great together,” a source tells Us, in part because of how different they are. The Saudi Arabian businessman, 31, tends to be more “serious,” says the source, and the “fun and wild” Fenty founder, also 31, balances him out. “They’re polar opposites, but it works for them.” Which is good news, considering the tumult in the star’s relationships with past partners — particularly with Chris Brown, who famously assaulted her in 2009 but with whom she’s since made peace, says the source. “They’re still friends, and…
