What do you mean friends don't return text messages?

Maybe that person is lazy, maybe it is difficult for him to answer your questions, or maybe the other person is busy and has no time to reply to text messages (usually this is an excuse). If he does this to anyone, it's his habit. If he only treats you like this, it is disrespectful. If you can't stand it, you can choose to break up with such people. If he always sends text messages to ask questions, and you never answer them, the nature is even more serious. You can completely break up with him, but it should be different from person to person and tolerant, but you must point out the other person's mistakes. If the other person really doesn't correct, you can ignore him again.