Lyrics:

If I only knew how much I'd miss you I'd never say bye bye bye
Cause now I find I can't forget you although I tried tried tried
I made a big mistake to leave you that's why I cry cry cry
If I only knew you'd miss me too I'd never say bye bye bye

(If I only knew how much I'd miss you) I'd never say bye bye bye
(Cause now I find I can't forget you) although I try try try
(I made a big mistake to leave you) that's why I cry cry cry
(If I only knew you'd miss me too I'd never say bye bye bye)

If I only knew how much I'd miss you...