What can i do?

If she is pushing you away and acting very angry with you even if you did nothing to her, this is a sign that she has cheated on you, and I am not talking about kissing. It is even a sing that she is still doing this. The signs are all around look for them. When you two are sleeping at night, does she sleep towards you? or does she sleep with her back to you? Does she get angry over the slightest things, because this will give her the excuse to leave the house, than she blames the argument on you will its all her. What should you do. Confront her. Do not be silent. Tell her is she does not go to marriage counseling, and stops her behavior that this marriage will end. If she loves you. she will fight for this marriage, if she does not let her go. It will be better for you and your children. Do not stay together because of your children, that will make the situation worse.