Hello, I'd like to help you with your question.
Infidelity is a deeply emotional situation. It can not only hurt your wife, but also take away her trust in the marriage and in you. However, it sounds like you are willing to acknowledge you made a mistake and you are willing to try to rectify it with your wife. Only she is feeling betrayed and angry so she is not hearing you.
Because you are sorry for what you did
, that can only help your marriage. Your wife is not hearing that because she may not be able to overcome her hurt feelings yet. Keep trying with her. Tell her how sorry you are. She may resist hearing you, but when she is able to calm her emotions she will remember you saying it. Also, keep in mind that your wife is probably deeply hurt right now and although she is saying she doesn't love you anymore, it is probably just that she is in a lot of pain.
Also, talk to your wife about making amends. Let her know that you are aware you hurt her and especially that you took away her trust. Ask her what you can do to regain her trust. Be willing to do what she asks (as long as it is reasonable and not hurtful). Let her know that you are wrong here and that you are willing to do what it takes to fix what happened.
Be willing to become an open book in your marriage. If it makes your wife feel better, let her see your cell phone, read your emails and check your accounts. This will not be forever, but just until trust is reestablished.
Consider seeing a counselor with your wife, if she will go. If not, go without her so you can show you are taking this seriously and that you will be addressing the problems that led to the infidelity. Let her know that you want to be sure this never happens again. And if she doesn't go with you initially, keep encouraging her to go eventually.
It may take a while, so try to be patient. Your wife may go from angry to hurt then to ok only to go back again. And whatever issues you were dealing with before may play a part as well. While you are working this through, you can also use self help to work on your marriage. Here are some resources to help:
Healing Your Marriage When Trust Is Broken: Finding Forgiveness and Restoration by Cindy Beall
Not "Just Friends": Rebuilding Trust and Recovering Your Sanity After Infidelity by Shirley P. Glass and Jean Coppock Staeheli
I hope this has helped you,