Do the people at Hallmark or American Greetings care if you get better? You would have to ask them.

Does Mike care if you get better?  If he made you a bespoke get well card, then he absolutely wants you to get better.

If Mike did not make you a custom get well card, then he hopes that you find peace with not getting that special thrill that comes from receiving 5x7 inches of homeopathic medicine.

Have fun.