I met a boy introduced by a friend. He calls me every day. He has been ill recently. Should I give him a call?

Depends on what you think of that boy. If you think it's disgusting that he calls you every day, this is a good opportunity. Tell him to leave you alone, so you don't have to call him. But if you have a good impression on him, you want to continue to develop with him. This is also a good opportunity. Because when people are sick, what they want most is the care of their friends. His affection for you will certainly increase.