So sorry this is happening to you. I've been there. After 14 years of marriage my husband came home said he had some papers for me to sign. Assumed it had to do with business. Said ok. Set them aside and finished fixing family dinner. They were divorce papers.
Nothing, no words can help. Just so sorry somebody else if going threw this. My only advice is get an attorney now. Somebody who can look after your and kids interests. I didn't have to talk to my husband or see him. Wanted anything he talked to my attorney. Same way if I needed anything. My husband went on to 3 more divorces. Sadly, when he wasn't feeling well on his first leg of a vacation, his 4 th continued on without him. He died alone in a hotel room. All I could feel was I would have been with him.
Cry, scream, hug those kids whatever helps you. You did nothing to deserve such pain.