Destiny, I'm sorry to read that you've been ill. I hope that you are feeling better.
The questions he has asked are fairly normal for those who are questioning their lives. I would sit down and draft up responses to them. The next time he asks, I would be honest and tell him exactly how you felt. It's time to put away the tears and be stronger in front of him. He wants to know how you perceive your relationship and marriage.
It's difficult not to be upset, but you've got to learn to do it elsewhere. He's getting very frustrated that he can't talk to you w/o you getting upset. Tears, clinging, begging, etc., are turn offs to them. Their empathy chip is broken, so they don't understand nor care about how we feel when they begin and continue their journey along the mlc path.
Mlc is about going back and trying to redo their lives. They think that they've missed out on a lot of things. It's about their childhood issues and yes, they will question all aspect of their lives and where they think they should be now and in the future. They also tend to think out loud, so do not be surprised when things are blurted out when he's home. No one knows if he's leaning towards divorce or not...only God knows this. Your h isn't even sure what he wants right now and that's a good thing.
Please take care of yourself.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.