Apart from the bit where it's almost 9.30 pm and I've been home by myself for 3 hours, sure.
That is a terrible idea, to cut a heart shape pizza, you would need a pizza to be bigger than the heart to start with which means you are WASTING VALUABLE PIZZA.
I think they were making the dough into a heart shape before cooking it, therefore no pizza was wasted. They would just ball up the cut extra pieces and use it for the next pizza!