My aversion to asserting my needs is probably all it comes down to.
I prioritized her comfort over mine and I ended up neglecting my own needs in the process. I was almost certainly dehydrated. I hadn't brushed my teeth or put on my retainers (important sleeping cues for me). I skipped my HRT injection. I was too warm. I didn't have enough room on my side of the bed.
I should have just gotten up and got everything the way I liked it, but I didn't want to disturb her contentment.