I've been sending messages to people ~ He replied [You are so annoying] ~ Does he really think I'm annoying?

According to a person's reply "You are annoying", I am not sure whether he really thinks you are annoying. This sentence may be that he expressed his dissatisfaction with your constant messaging, but it doesn't necessarily mean that he really thinks you are annoying.

In this case, you can try to stop sending messages and see if he will continue to communicate with you. If he doesn't reply to you, it may mean that he needs some time to calm down and think. However, if he replies to you later and continues to communicate with you, it may be that he was in a bad mood at that time, not that he really thought you were annoying.

In any case, when communicating with others, try to avoid making others feel uncomfortable or dissatisfied. If you feel uncertain, you'd better talk to him directly to better understand each other's thoughts and feelings.