Wlecome. I'm sorry that you had the reason to come find us, but I am so glad that you DID find us. We're all here to support you.
First off, take a look at the upper left corner of your screen, for a yellow box. Click on The Healing Library which is in the box. Start reading. Also, any post on this forum that has a bulls-eye on it is also something that you need to read. These are all good articles written by people who have been there and done that. Knowledge is power, so please start reading.
Next, I would highly recommend that you make an appointment with a divorce lawyer and find out, exactly, what your rights are for child support, spousal support, etc. You don't have to act on that knowledge, but again, knowledge is power and you need to be as knowledgable as possible. Your WH is obviously not repentant at all and has no intention of being faithful to you. So you need to start figuring out what your legal options are.
Please come back and post for support. We're all here for you. (((hugs)))