The way to pretty much anyone's heart is through the stomach. Sweeten it up with a simple heart and you've got a lifelong bond.
I LOVE beets! Sadly, last time I was peeling some in preparation for roasting, my hand swelled up super huge and scarylike and I had to take a Benadryl and fell asleep and then I was afraid to ever eat beets again because if that's what happens to the outside of my body, imagine the inside of my throat! Terrifying. So now I can only lust after beets from afar. Love you beets!
Normally I'd scream overkill at a cake this busy but there is some amazing balance going on here. A striped rainbow heart inside a striped rainbow cake? A rainbow of fondant sprinkles so perfect they must have been placed there by very patient elves? I swoon for this kind of overkill.