Your shoes for so long suddenly ripped open while you were walking and Vito saw it. So during lunch time he bought you new shoes, expensive ones, instead of buying lunch for himself and eat. After class ended, he gave you the shoes and offered to let him help you wear your shoes. He knows you have financial problems since you don't buy new things you need for yourself. Vito is really rich and already owns a mansion. The both of you are academic rivals but he still cares about you.