I can relate on the talking and just being exhausted but listening as they talk. My W does this some days for an hour or more. Its sporadic thought, she will do it a few days straight then back to not much talking at all. All at times I cant just "make myself unavailable" without looking like I'm intentionally avoiding her or being an [censored]. I'm in a much different situation, so its likely for a completely different reason shes talking to me.
I've been reading along with your sitch for a little while, not much I can really add. Its just interesting seeing the point of view from someone a year or two on. Dig deep indeed.
Accept what is, let go of what was, and have faith in what will be
