I had a similar situation last week. H threw out the D word again. Said let's just get this over with. I let him cool down over night and just said I'm sorry that things got out of control. I don't want a D and I hope you will forgive me. Did not wait for a response. Later H acted like nothing happened. I think the D outbursts are motivated by fear that we are going to leave.
I'm sorry you are in this sitch. Hugs to you. You will be in my prayers.