Reporter: These days, she's happy, in love, and opening up for the first time about her reunion with chris brown. In a new interview, the megastar says she and brown are in a great place and she's not... See More
Reporter: These days, she's happy, in love, and opening up for the first time about her reunion with chris brown. In a new interview, the megastar says she and brown are in a great place and she's not apologizing for it. She says, I decided it was important for me to be happy. And I wasn't beginning to let anybody's opinion get in the way of that. Even if it's a mistake, it's my mistake. It's been four years since the infamous night when brown left her bloody and bruised. He had no -- no soul in his eyes. Just blank. He was clearly blacked out. There was no -- person when i looked at him. Reporter: Brown hads been making headline this is week for an alleged brawl with singer frank ocean. Rihanna says he's a rehabilitated man. He made a mistake and has paid his dues. Sometimes people need support and encouragement instead of ridicule and bashing. She says they're relationship has changed for the better it's different now. We don't have those types of arguments anymore. We know exactly what we have now. We don't want to lose that. She told "rolling stone" fans should not confuse her love for weakness. Is there there's though third chances here. Reporter: If it happens again? That's just not an option. I wouldn't be here if I didn't think chris was ready. Like the name of her newest album, she is una I po-- unapologetic. Let's talk about the super bowl ad stirring up controversy,
This transcript has been automatically generated and may not be 100% accurate.