What can I do to make up with Cancer IT man after quarreling?

Cancer man is very nostalgic! You should keep this point in mind. It's easy to get him back. Let him recall all kinds of happy times in the past intentionally or unintentionally, and let him constantly reminisce about your goodness. If he feels indebted to you, even in the worst case, even if you break up, he will take care of you as much as possible. Cancer doesn't like radical constellations either, so you should never condemn him head-on. Besides, if his mother and family like you very much, you basically win 50%.