Even if he is your boyfriend, you cannot lend him a credit card, because once the overdraft amount is large, it will be difficult to repay it, and the responsibility will be yours. So you are right not to borrow. You can tell him that you want to borrow some money, and I can lend you a small amount. The credit card stipulates that it can only be used by myself and I cannot borrow it. You can do one yourself, but it's not impossible. As a result, he was too embarrassed to borrow money from you and it didn't offend him. After this incident, you need to investigate his situation more and see if you still need to continue dating such a boyfriend.