What's the name of this song? Lyrics at the beginning of "Call me if you love me, and send me a message if you miss me"

Call me if you love me, okay? Miss me. Why didn't you text me? Please don't forget? I am in your heart? Maybe we don't have time to meet? Maybe no one can change the time. Nothing matters. As long as there's your phone? La la la la la la? Call me if you love me, okay? Miss me. Why didn't you text me? Please don't forget? I am in your heart? Maybe we don't have time to meet? Maybe no one can change the time. Nothing matters. As long as there's your phone? La la la la la la? Call me if you love me, okay? Miss me. Why didn't you text me? Please don't forget? I am in your heart? Maybe we don't have time to meet? Maybe no one can change the time. Nothing matters. As long as there's your phone? La la la la la la? Call me if you love me, okay? Miss me. Why didn't you text me? Please don't forget? I am in your heart? Maybe we don't have time to meet? Maybe no one can change the time. Nothing matters. As long as there's your phone? La la la la la la?