I don’t allow meat in my house, and my 15-year-old stepdaughter says I can’t impose my vegan lifestyle on her. I told her, ‘I make the rules here! Stay at your mom’s if you’re not happy!’ My husband said nothing. Later that night, I woke up and heard my husband screaming from our son’s room. I found my 7-year-old on the floor, sick and covered in chocolate.

There was a cake with peanuts beside him. He’s allergic to peanuts, and we’re always careful about keeping them out of the house. It turned out my stepdaughter gave him the cake on purpose to ‘teach us a lesson.’ She was already gone by the time I looked for her. I gave my son an EpiPen, and he started recovering. I told my husband I never want to see his daughter again. He says she’s just a teenager who didn’t realize the seriousness of her actions and wants me to forgive her, but I can’t.

What should I do?

Nadia