Married filing separately in Massachusetts

I am in the middle of a really difficult divorce and my soon-to-be-ex-husband is refusing to provide me with any information. We have been living separately since November 2019. I was waiting to file taxes and asked him several times to provide me with his W-2s so I could file. Since he has refused, I'm filing married filing separately. Massachusetts is asking for what his income is. I don't know and I can't find it. If I had that information, I wouldn't be filing separately in the first place! How do I get around this so I can file my Massachusetts taxes timely?