I like the song because it has a very significant meaning to it! It's saying how she's in love with this guy but the only thing he did to her was use her and treat her wrong. And she's realizing that she needs to get over him but its so hard because she has deep feelings for this person. So that's why she's saying she's gotta check into rehab because he's her disease. He's causing her to beat herself up when its not even neccesary. I like the song because its helping me with my problem that I'm going through right now and it's speaking the truth and I applaud rihanna for putting this song out because there are people like me that need 2 hear this. Personally I love this song.