Interpreting Notes to Myself

I'm working on line edits this morning, and while paging through the typical "take out the 'and' insert a period" types of edits (I have a lot of winding, comma heavy sentences that must get truncated during revisions. This should not surprise anyone who reads this blog, or anybody who's seen first drafts of my corp world writing), I found, at the bottom of one of the pages, an arrow pointing to a sentence describing Rhys's wife sleeping.

Below the arrow I had written "Mad sex."

I have no idea what this note means.