What do you mean when a man tells me to be careful?

When a man tells you to take care, it shows that he cares about your body and health. This is a kind expression. The other person thinks that you should pay more attention to your health, or hopes that you can maintain good living habits. If you are close, this is the attention and blessing of the other party. In the case of breaking up, this is a ceremony to end the relationship, or the other party hopes to pay more attention to his health in his later life.