"I wanted to DB but I was so tired, wasn't feeling well, and he just kept going at me saying I didn't care about him."
To a point you should have set a boundary. I expect that this is something that has had an impact on your marriage. Just because you are DB'ing it does not affect the communication issues that have/had existed. DB'ing at its best is being creative in those moments. Saying this is not the time to talk.. and setting a time to do so would be DB'ing. Don't get too hung up that you "failed" it very likely will not have anywhere near the impact you think it did.
"He threatened that he will have to do it all on his own if I won't help him."
Your thoughts on that were spot on. Just be careful that you don't put yourself into a position where you become the one wanting to file. These situations can and will do that to you. Try and create some healthy distance.
Relax Eat Think Act normal React.. Smartly. Do something different. Emulate. Do Work.
