He would rather praise others than return my messages. What should I do?

Feelings can't be forced. Since he would rather care about what others say than reply to your message, or you two are at odds, he deliberately angered you and let you see it. Or he doesn't want to talk to you at all and is not interested in you. If the former is better, you can give him a cold war. If it is the latter, you can ignore him and see when he will talk to you before responding.