This is an occasion to be celebrated! wee hee!
Ok, I know you are probably not feeling that way right now. But: your wife is doing you a favor. She cares about herself, and you, enough not to put up with abuse. She is doing the right thing.
Focus 100% on yourself and dealing with the anger and issues. Do whatever you have to.
This will be hard: but don't allow yourself to dwell and think about your wife/marriage right now. It's pointless.
She needs to see, over time and through your actions, that you can change from an angry abusive man to one who is peaceful and can take her needs into consideration. That's the only way she can truly trust you: over time, constant action, and proof that you will never ever blow up on her again. And you can not control she will respond to any changes you may make. She may not be able to ever forgive you or trust you again as a partner.
You need to get to the place where it doesn't matter if she gets back together with you are not. Where you work on this anger for YOURSELF and so you can be a better person...and a happier one who is more able to show love for others.
I really wonder who arranged marriage councilling so early? IMO, it's too early. You need to be well along in healing first, and earn that right.
Is your wife seeing anyone by herself?