I really want to send a message to someone. What should I do? I'm afraid I'll annoy her because what I want to say is not very important.

You can send it to her. Have the courage. If you are afraid of annoying her, you can not send it. Silence is also a suspense. You may not be happy, but what you can't get is definitely the most beautiful memory. What you can't get is always the most beautiful, the past memories are the most beautiful memories, and the past beauty is the most beautiful.