rH, I think you handled the lawyer's visit well. The lawyer was telling you both about his story of almost getting divorced for a reason. He was trying to reach out to your h in a very subtle way. It's very evident that your h is a confused man and truly does not know what he wants.
They cry because they are hurting so badly and they are very confused and don't know which way to turn. They want to stay and yet they want to run, i.e., nature calls them and it's very gut wrenching for them to have to make a decision of this sort and that's why many of them push us to do the dirty work because they can't do it.
Definitely work up the document and get it to your lawyer as soon as possible. You do not want to give your h a lot of time to think over what he's agreed to, since his guilt is giving you half of everything w/o a fight. It's so sad and I wish I have a magic pill to wake him up.
As for the bruising, many of old timers saw this when our spouses ran away. My xh had bruises on his shoulder and lower back and claims he didn't know how he got them. I think your h does know how he got the bruise and is claiming he doesn't remember. Don't push asking him about it again...the answer may come later.
rH, now it's time to focus on you and your children. You can leave the door ajar for you h, but be careful of his cake eating. Keep your boundaries in place.
Enjoy your weekend.
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.