New - HELP! Tried the 180/Last Resort & Failed

[AloneAt35]

He came home in the middle of the night to get his papers and left in the early morning. Few words were exchanged. This was the second time I've seen him that I didn't follow him around like a puppy dog or attempt to elicit his attention by trying to make conversation. That's a 180 for me, but I don't think he noticed the change.

Today I got an appointment with a therapist for my depression. I have no car so I did a 'test walk' to make sure I could get there without having to ask ex-partner for a ride. Its a long walk but I don't have to cross the highway, so manageable. I'm all about being independent now, no matter the lengths. My appointment is in two days.

I have a question. Are the DB techniques applicable to my situation since (being unmarried) he was literally able to walk away after twenty years without any legal or ethical obligations?

In other words, since there isn't any legal marriage to save, is there really anything to save, or do I give up hope?

Since we were not married, and since he has essentially moved out and is already in another relationship, he doesn't feel he owes my feelings or well-being any consideration. Maybe that is true. I feel that twenty years is worth fighting for, but since he has moved on at lightning speed, do I really have even the smallest chance of saving this R? He's totally checked out. Is there any other way to fight for this relationship? As I mentioned before, the LRT has been in practice for almost a week, but he actually seems to be relieved by my lack of presence in his life.

I know, these things take time.