Here's some mind-reading on my part, but there is some justification for it based on hints, things she's said, wrote, etc. My W wants to maintain a happy, agreeable home life. This doesn't mean she's feeling "in love with me", -- she has told me she doesn't more than once. But she doesn't want conflict and an unhappy or disagreeable home life either. So I think part of the reason for ML is to maintain this agreeable home life. Also, my W has sexual needs too, and she's not getting them satisfied elsewhere so why not?