"You think you know somebody, but you really don't," he told People.
"There is some bruising," Fenty said of Rihanna's current status. He reportedly saw his daughter in Barbados on Friday.
"She will be alright," he added. "At some point, she will speak out. I hope she will stand up for women all over the world."
While he didn't shed light on what happened that night, the events seemed to come as a surprise to Fenty.
"They seemed pretty happy," he said. "I don't know what went wrong."
And as for the future of Rihanna's relationship with Brown, he has one piece of fatherly advice.
"If it were me, I'd move on," he said.
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