<Tr> <Td> 💔 </Td> <Td> U + 1F494 BROKEN HEART </Td> <Td> & #x1f494; </Td> </Tr> <Tr> <Td> 💕 </Td> <Td> U + 1F495 TWO HEARTS </Td> <Td> & #x1f495; </Td> </Tr> <Tr> <Td> 💖 </Td> <Td> U + 1F496 SPARKLING HEART </Td> <Td> & #x1f496; </Td> </Tr> <Tr> <Td> 💗 </Td> <Td> U + 1F497 GROWING HEART </Td> <Td> & #x1f497; </Td> </Tr>

Where do we get the heart shape from