I knew it was there
Though I tried to hide it
The feeling just kept on shining through
Haven't known you that long
So I try to deny it
But the feeling was much, too much, too strong
Could this be love
Deep down inside
Tearing 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 seeing each and every day
Should I play this game
Of just being your friend
When I know that's not where I want it to end
How could this be wrong
When the feeling's so strong
Tearing 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
No, 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
Every time you walk by I see love in your eyes
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
Constantly, you're on my mind
You, I can't sleep, no
You're always on my mind
All the time
I keep on thinkin' 'bout your love
Caress me baby