Which has absolutely nothing to do with your fitness as a parent.
You've made up your mind what you want to do. You have all of the answers.
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Its interesting to see perspective from the "other side"
Without getting into too much detail, I'm in the opposite situation with regards to a mother who is trying to cut me out and replace me with a new b/f as my child's father. Amazing thing was so far during the process of trying to assert my rights, I'm made out to feel like an inconvienence by her side for ruining their happiness and was asked to move on. The only picture I have so far of my child includes him in it. You have no idea the sort of emotional angst that creates.