Why didn't the other party return my message after breaking up?

Whether you will reply to the message after breaking up depends on what you think. If you think it's over, it's over. If you refuse to let go, even if you don't contact, you won't be able to contact in the end. Didn't reply to the message after breaking up. That's another scene. If I decide to let go, don't bother. Leave all problems to time and let nature take its course. Don't return the message after breaking up, don't think about it deliberately. It is more beneficial to find something meaningful to do than to dwell on these things.