Is there anything that could change to cause for you to live him?

No, If your stepmom doesn't love you she just doesn't love you and as long as she treats you with kindness and respect then that's okay.

Not everyone who cares about you has to love you as long as they treat you kindly.

And honestly you need to stop comparing How your stepmom treats you with how she treats her biological children. Comparison is the thief of joy.

And as far as her taking out her kids to go do things and not you have you ever voiced that you wanted one on one time with her because her and your dad might not even know that something you want.

To also piggyback off of that she's allowed to go do things with her biological children and not you if that's something her and your father have set up and that is okay too she's likely not doing it to purposely make you feel excluded or less than she just wants to spend time with her own children which is acceptable and normal.

But you really should think about what the original commenter said: do you love your stepmom? Do you treat your stepmom exactly the same way you do your bio mom?