What should I do if my husband is angry and doesn't send a text message back?

If you are angry with your husband now, and you send him a text message, and he won't reply to you or ignore you now, then you should go to him at once. What's the use of apologizing to his face and telling him that you sent a text message on your mobile phone? He must have overlooked you. Now that you know that he is angry, of course he won't ignore you casually. What you have to do now is to find him face to face, admit your mistake to him, and then promise never to do it again. Only in this way can you save him and not make him angry.