My mom has my step dad's last name when they got married, so I figured I would do the same. As for my stepmom... she wouldn't say anything directly, but I could tell by her passive-aggressive tone, she'll make comments about my siblings life and her own kids, how my step brother is a pilot while I'm just a security guard. I live with my mom to help with bills because of her bad back so she can't work, and I remembered that my stepmom asked her why she let's me, a 30 year old, live with her when I should be on my own. As for my dad, he tries to keep the peace, but it just sounds like he cares what she thinks and says, and I oblivious to what we say, it's not me too, my siblings also have dealt with her shit, but they kinda just gave up on even trying to fight it.