If I fell in love with you would you promise to be true

And help me understand
Cos I've been in love before
And I found that love was more
Than just holding hands
If I give my heart to you
I must be sure
From the very start
That you would love me more than her
If I trust in you oh please
Don't run and hide
If I love you too oh please
Don't hurt my pride like her
Cos I couldn't stand the pain
And I would be sad if our new love was in vain
So I hope you see that I
Would love to love you
And that she will cry
When she learns we are two
Cos I couldn't stand the pain and I would be sad if our new love was in vain