What is when a guy calls you sweetheart?

If a guy calls you sweetheart, it can be a sign of endearment or affection towards you. However, it is important to note that context and tone of voice should also be taken into consideration before making any assumptions about his intentions. Some guys might use the term "sweetheart" out of habit, or it could just be a part of their natural way of speaking. It's important to remember that different people have different communication styles, and not everyone uses the same terms or phrases to express their emotions. Ultimately, it's up to you to determine how you feel about being called sweetheart and whether or not it indicates interest or respect from the person using the term.