I truly wonder how much of this will he remember when he is through. His memory and his ability to concentrate are really affected right now. Aren't those symptoms of low testosterone?
Yes, anytime you have an imbalance of hormones, whether male or female, it exhibits itself in poor memory/concentration.
Once it's all said and done, he will remember very little if anything from this and all other experiences...and that is a good thing, honestly.
It really won't matter what he remembers if he makes ALL the changes required to grow up within this trial.
Don't be surprised if he loses track of days/dates/years...while scary that IS normal for this.
At this point, and at many others, he will see YOU as the stronger one...and it must needs to be this way for now.
It's times such as these that he will be easily confused, and something is literally "pointing" him back to you...the rock in the storm.
I saw this in my own situation..my husband said some pretty strange things during that time; one example was that he said that something told him I was there to help him, and he was going with it. I said that I'd always been there, and he'd say he couldn't remember that.
It was like all that had occurred with the passing years in some ways had NEVER happened...odd, I know, but true with him at the emotional point he was at.
His testosterone was low, but wouldn't get any help for it..and I knew to let him go on that..it was his decision, not mine. I just rode it all out with him; knowing that any pressure from me would slow him down as he walked this tight rope along Sanity/Insanity Way.
When his hormones began to balance back out the other direction, it took me by surprise.
Everybody is different in how they navigate through, and you know your husband better than anyone.
Hope this will also help, time, support, love and space are required during this time to help them come through these stages, and it's not easy when you're watching him cry, and bottom out within himself.
I cannot say how long it will take your husband to navigate through, but you'll know the ending of this phase based on the changes you'll observe as he comes through.
It will seem as if you're both "starting over"..then he'll withdraw again for a time; and it will scare you, but understand this would be necessary for him to make some important decisions within himself.
Facing themselves is scary to say the least, but another necessary step in order for them to come on through...and it takes a long time to do so.
Take care.
Remember, as each person is different, every MLC/Transition is different..what works for one may not work for another. Most of the time it is trial and error for ALL involved.