Well, no doubt he likely feels less pressure from you, and better understood. Good.
H. doesn't want to come back right now. He wants to live a single lifestyle; no serious relationships with anyone. Meanwhile, he still wants a connection with me, just not a commitment. However, he is very open to slowly letting the changes in our R. unfold, and believes it's possible that down the road this could be what he wants. He told me he does still care about me. He doesn't want to sell the house because I think he feels he might be back someday - but that could take a while.
The only things I'd tweak about your summary is changing "he is very open to slowly letting the changes in our R. unfold, and believes it's possible that down the road this could be what he wants." which is really more about your hopes and wishes; looking over your post, it's what you expressed, not him, and it's what you've implied from his words, "Oh, down the road, yeah". And the thing about you assuming what he's thinking about concerning the sale of the house, I'd get rid of that thought too. All assumptions based on what YOU want to have happen.
"I told him I understood this and respected his wishes. But I would like to keep in touch with him and perhaps down the road, as he saw more changes for the better between us, he would be open to seeing how things could go" is still pursuing R talk, hun, but overall, ya done good.
Truth is, nobody knows what will happen in the future.
And his words from Jan. come back to me... I think he just wants to screw around.
Don't think about it. it won't change anything and you'll make yourself feel terrible. If that's what he's doing, he may find it causes more headaches than not.
So my choices are to throw in the towel on him and move on 100%, or, move on as much as possible while still being legally married to a man in crisis mode