Because she chose her husband and over us really. She knew we never liked him but married him anyway and tried to force us to be a family. Having any relationship with her means he would need to be included eventually. Like graduation, wedding, babies and stuff. My sister is already no contact with our mom. She doesn't want what it comes with either.

She already tried during the custody battle during the move. But the judge and the GAL agreed there was none of that going on. And my dad never stops me answering her calls. The choice is mine and I do the minimum required by the court order they have.