GF interesting situation that you have going on. First of all, I would stop reading anything into what your h is or is not doing, saying etc. All you CAN do is live your life for yourself right now. You really don't have a perspective of their minds during this confusion and what you think it is, is probably way off from actuality. It was for me!
Your h is confused period. He doesn't know which way he wants HIS life to go, hence the confusion of the pending divorce or ML to you, inviting you over etc. Depression is a terrible thing and you just really don't know what is going on in the mind of a depressed person.
It seems you have a good time with your h when you are together and I would just continue to capitalize on that when you have the opportunity, but without the sarcasm.
My h and I had date night, ML on a regular basis, took showers together, celebrated our anniversaries, birthdays, etc, but this went on for years before he decided to come home. It took him that long to decide home was where he really wanted to be. So you see it doesn't neccesarily translate into reconciliation or coming home. Now I allowed this, but that was me and how I wanted to approach things. Afterall, we were still married and my h was lying about ow all along.
I have no advice on divorce, but sounds like your lawyer gave you some good advice. I hear you about time running out, but this is something you CAN'T control and the more you push your h the more he will feel pressure to act. Let it be and see how the future unfolds.
Try not to jump so far into the future and nuture what you do have or the time you do get with your h. The financial mess will happen and we do live in a world of options today. Should you have the opportunity to explore this, you and your h can figure it out together. I am a strong believer in when one door closes another will open.
Breath, relax and have fun with whatever comes your way.
Me 50 H 42 S 22 S 9 D 7 M 12 T 17 H moved out 8/2006 H moved home 1/2007 for 3 weeks H moved home 5/2011 for good
"Learn from yesterday ~ Live for today ~ And hope for tomorrow"