If there's anyone utterly confused by the Chris Brown/Rihanna relationship, it's Rihanna herself.

After reportedly splitting yet again, Brown showed up at the Los Angeles stop on Rih Rih's Diamonds World Tour, Monday (April 8).

Breezy's pop-up move was likely still on Rihanna's mind during her show in Anahiem, CA, last night because she made reference to relationship problems. Right before launching into the love song "What Now," the 25-year-old addressed the roller-coaster ride that is her personal life. "How many of you are in love?" she asked. "How many of you hate love? How many of you don't f---ing understand it? I'm in that group."

Not "understanding" her love for Brown is something she's battled with since he attacked her in 2009. The couple has clocked more break-up-to-make-up sessions than we can count, but appeared to be happy together since late last year.

During his recent L.A. press run, Brown opened up about keeping the relationship fresh and fun. He confirmed the end of their relationship days later, yet onlookers witnessed Brown going into Rihanna's tour bus after her L.A. show.

It's hard to keep up with these two.

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(Photo: London Entertainment / Splash News)