Rachael, You mentioned that your h was picking at you about some things. He's in replay and he's going to "pick" at you and constantly find fault w/everything you do. That's why I called it the "picking stage". It's all part of replay and a way to "justify" why he's doing what he's doing.
Actions speak louder than words. He says he wants to work on the marriage, but isn't doing much...I suspect you are the one that is trying to work on the marriage. My xh said the same thing and did absolutely nothing to work on the marriage.
You are wise to leave your situation in God's hands. However, I do hope that you are using some type of protection when ML. Even though he says he's working on the marriage, please use precautions until he has actually proven to you that he is serious and is planning to return to the marriage full speed.
No matter what happens, you are doing to be okay. You are a strong woman.
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.
