Love & mistakes

I don't understand why you said that you cared, and y in the world you said you'd be there and then in the next second u just disappeared. you told him without telling me and you knew that it hurt me to keep a secret but still you just acted OK, like how that you knew my heart would break but you let your feelings go. you knew what no one knew and i felt what id never felt but you let that go and blamed me? how could you how can you i loved you and it was a mistake.