I sent him a message that it was over, and he didn't return the message or answer the phone. What does this mean?

Really love, then love in your heart from now on, and you will be really happy when you see the happiness of your beloved. Although the object you get along with is not you, maybe people are really possessive, but sometimes you have to learn to let go. You've been in love since you were together. Don't be too hard on him. After all, you have a family, and you let go, which means you are tolerant.