A song (in Spanish) where the singer tells a girl "You have know idea how much I think about you" ....or something like that? I'm not even sure if that's the title of the song, or just the chorus. The song gets slow, then picks up again.

Oscar D'Leon, Tito Rojas, Gilberto Rosa, Frankie Ruiz (RIP) --- perhaps one of these singers? Or someone like them?

Please help.