How can I set up product variations for one item with multiple card options?

I have another variation question…

I sell resin hearts with little poem cards.

I have one heart but four poem cards to choose from.

When I put the one heart in variation colour - yellow.

Then the four cards, Sunflower, Blue Hearts, Miss you and Flowers.

My problem is now the shop thinks I have four yellow hearts but I’ve only got one heart and four cards for people to choose from.

How do I make it so it’ll only show one stock available but still let me have the four cards to choose from?

you can custom variation for color

yep I’ve figured that out. But I’ve got one colour and with the four cards
people can choose from it’s saying there’s four items in stock rather than
one