Hanahaki Disease, A Disease where the victim of one sided love begins to Cough up the petals and flowers of a Flowering plant growing in their lungs

One day crush finally tells oc that they are dating (Whoever you choose) A couple minutes later after oc  congratulates them, they start to feel a scratchy, feeling in their throat, they rub it off as if it was nothing until they begin to cough of flower petals.