I don't know if it will help you or not, but sometimes with my son--who is a preteen, not a teen--I feel the need to...I don't know how to explain it...pull back?...as a parent, not because I don't love him any more, but because he is getting older and I want him to be less dependent on me. He is very immature for his age and it causes him to get teased and picked on, so sometimes I feel like I need to stop treating him like a little boy, even though he is still happy being treated like a little boy. For example, I no longer want him calling me "mommy" and I no longer call him "sweetie" or other cutesy pet names that I used to call him when he was younger.
I am finding parenting a tween to be more difficult in many ways than when he was younger. I need to establish boundaries that will help prepare him for adulthood. I imagine that it will only get harder when he is a teen.
Could that explain your father's change in behavior? Maybe he is starting to see you more as a woman and less as a girl?
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Mom to 2 exceptional atypical kids
Long BAP lineage