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[Verse (omitted from film):]
Sweetheart of mine, I've sent you a Valentine
Sweetheart of mine, it's more than a Valentine
[Refrain:]
Be careful, it's my heart
It's not my watch you're holding, it's my heart
It's not the note I sent you
That you quickly burned
It's not the book I lent you
That you never returned
Remember, it's my heart
The heart with which so willingly I part
It's yours to take, to keep or break
But please, before you start
Be careful, it's my heart
