looking for song title and artist

asked several radio stations but know one could reconize song. I wont stop until I find title of song and artist. Late 80s or early 90s r+b song. I want to know because i find it amazing no one knows song. Lyrics go like this. " late at night when were at home suddenly I find that I cant make it on my own" "Your my weakness ,your the only need I got ,no way to stop, your my weakness, whats been missing all a long , a love so strong" Does anyone know song and artist.