Berate her.

You stand up. "It's bad enough that you decided to slut it up as soon as Dad died, but then you bring me to Rosestead when you knew I might turn into a girl!?"

She sobs. "I didn't think you'd change, Parker. Most people don't. I thought it would help you, make you more manly. Like it did for your father. And I guess I figured if it did change your sex, maybe that would be for the best."

"For the best!? Don't you think I should have had a say in that?" you demand.

She breaks down in tears again. "Of course you should, Parker. I was just being selfish. I'm so very sorry."