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 tried 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

Thinking bout you all the time

I can't sleep, no matter what I do

I just keep on thinking bout you

Why do I feel this way when I know you have someone

That you see in each and everyday

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

But the feeling's so strong tearing me apart I feel it in my heart

Constantly, you're on my mind

Thinking 'bout you all the time

I can't sleep, no matter what I do

I just keep on thinking 'bout you

Constantly, you're on my mind

Thinking 'bout you all the time

I can't sleep, no matter what I do

I just keep on thinking '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 going through

Everytime you walk by I see love in your eyes

You're on my mind

Keep on thinking about you love

I can't sleep

I just keep on thinking 'bout you

Constantly, you're on my mind

Thinking 'bout you all the time

I can't sleep, no matter what I do

I just keep on thinking 'bout you