If you run away from home and your boyfriend hasn't called or sent you a message for several days, what does that mean?

This may indicate several different possibilities:

1. He may not know that you left home: it may be because he doesn't know that you left home, or he may not know where you went. In this case, he may not realize that you are missing.

He may not know how to contact you: if you don't tell him your whereabouts, he may not know how to find you. In this case, he may want you to contact him actively.

3. He may not want to contact you: If you run away from home because of conflicts or quarrels, he may not want to contact you.

He may think you are unimportant: if he doesn't respond after you run away from home, it may mean that he thinks you have made a decision and he thinks you are unimportant.

I suggest that you can communicate with him directly, understand his thoughts and feelings, and see if your relationship can continue to develop.