"she still sees (and obviously detests) the old me, while I detest the new her."
Unfortunately, that is very well-said...and the truth for most of us.
And yet, the more I sit and ponder on this, the more I wonder if this is truly God's test for any person: to love someone - anyone - unquestionably. If I start drawing a line in the sand when it comes to being forgiving and loving, then I've failed Him, and in this regard, am no better than what my wife is.