I feel annoyed when people I don't like send me messages.

Understand your feelings. People who don't like sending messages can make people fidgety. However, sometimes we may need to reply to messages or handle some necessary things. At this time, we can try the following points to help ourselves better cope with this situation:

1. Stay calm: When you feel irritable or uncomfortable, try to calm down and take a few deep breaths to stabilize your mood.

2. Set boundaries: Tell the other person when you want them to contact you again, or tell the other person that you are busy now and need to deal with some things. This can avoid being disturbed and feel more annoyed.

3. Short reply: Try to reply to each other with short words to avoid in-depth communication. This can reduce unpleasant emotions.

4. Set a time limit: If you think you need to deal with something, you can set a time limit and tell the other person how long it will take you to finish these things before you can reply to their message.

5. Avoid overthinking: Sometimes we feel uneasy about the news of people we don't like, but overthinking can't solve the problem. So, try to avoid overthinking and concentrate on the current affairs.

I hope these suggestions are helpful to you.