Husband has officially served me divorce papers

My husband has been giving me the silent treatment the last few weeks. I cheated 6 years ago and never told him. The guy I cheated with tried to message me so I blocked him and he had recorded us having sex without my consent, posted it to a porn website and shared the link with a bunch of people on my Facebook friends list and before he even got to my husband his brother had already sent it to him. My husband told me I humiliated him and broke his heart. He gave me the silent treatment. We have kept have together, including a baby. I've been sleeping on the couch and last night he gave me divorce papers. I tried and tried to beg him to work things out. He just told me that people told him he should have left me over something that happened when we dated and that he didn't. He should have left me over this other thing and he didn't and that there were several things I had done in our marriage that upset or hurt him and he should have left me and it's sad that it took him having to see another man fuck me for him to realize that I am truly a selfish person who cares about nobody but myself. I did tell him I did it 6 years ago and never did it again. He told me that he REACHED OUT to the guy and the guy told him it was a full blown affair and he doesn't know who to believe because we are both fucking liars. He told me he's done. He's divorcing me but that his sister who is a lawyer will take my case pro bono if I want to go after the guy for leaking revenge porn. Not because she wants to or likes me but because he asked her to and to consider that his last gift to me from our marriage. He also told me from this day forward none of what he does is my business because he no longer considers me his wife. What he does and his business and WHO he does is his business which he's obviously saying who he is going to fuck. I think I have completely ruined my life. My husband is a good man and did not deserve any of this. And he's not giving me any chance to fix it but maybe I don't deserve it. I have a problem with not seeing the problem until things are shoved into my face and seeing the big picture of everything I have done besides the cheating... The only good thing I guess I can do is set him free