"When you do end up having sex, how exactly is it usually initiated?"
It almost always occurs in the bedroom with me messaging her back, if I'm lucky, she'll turn over and start kissing me and we get into short foreplay and then sex.
Yes, it is sad, and more so because it was not always this way.
And now for the question you forgot: "What situations occur that any sane person would assume their spouse might have some interest in sex but is definitely the opposite?"
Yeah, it's truly vexxing but then again, DW is completely predictable in these instances. Just so long as I work from the functioning brain I know when there's a chance and when there's none. Sometimes.
Thank you for your questions (and the responses), I've found them interesting to explore.
These days, we have a semi-schedule which is basically once in the morning midweek, and once at the weekend lie-in.