应该是fallin吧，
Alicia Keys的，歌曲也很动感的~其中一段歌词
I keep on fallin'... in--- in and out of love with you
Sometimes I love ya, sometimes you make me blue
Sometimes I feel good, At times I feel used
Lovin' you darlin', makes me so confused
[Chorus]
I keep on fallin', in and out of love with you
I never loved someone the way that i'm lovin' you