I knew it was there
Though I tried to hide it
But the feeling just kept on shining through

Haven't known you that long
So I try to deny it
But the feelin' was much too, much too strong

Could this be love
Deep down inside
Tearin' me apart
I feel it in my heart

Constantly, you're on my mind
Thinkin' 'bout you all the time
I can't sleep no matter what I do
I just keep on thinkin' 'bout you

Why do I feel this way
When I know you have someone
That you're seein' each and everyday

Should I play this game
Of just bein' your friend
When I know it's not where I want it to end

How could this be wrong
When the feeling so strong
Tearin' me apart
I feel it in my heart

Constantly, you're on my mind
Thinkin' 'bout you all the time
I can't sleep no matter what I do
I just keep on thinkin' 'bout you

Constantly, you're on my mind
Thinkin' 'bout you all the time
I can't sleep no matter what I do
I just keep on thinkin' 'bout you

Now, I don't want to start no trouble
Between you and I and your lover
But I must tell you what I'm goin' through
Everytime you walk by, I see love in your eyes


You're on my mind
Keep on thinkin' about your love
I can't sleep
I just keep on thinkin' 'bout you
Constantly, you're on my mind
Thinkin' 'bout you all the time
I can't sleep no matter what I do
I just keep on thinkin' 'bout you