#@@#@!![20F][50M][23F] how do I save my partnership with my dad when their girlfriend is coming between us?

I’m 20 and my dad is fifty and we’ve always a new great relationship. But he is has been dating this new girl who’s 23 with regard to 1 . 5 year and ever since she came into his life everything has turned into a mess where my dad even endangered to cut me off. He or she just announced that he’s about to propose to her and that I have to start treating her a little much better. I guess she told my dad that I’ve been impolite to her, when all I actually do is not engage with her. I don’t care about her inviting myself to dinner, or to hangout because I just don’t like her, and this is not me personally being rude.

For some reason she’s omitting part of the story where she’s bossing me personally around, telling me to complete things like she’s my mom. This really is so frustrating because whatever I say I say to my dad, I will be the theif. She’s clearly a precious metal digger, who’s using my father but he can’t find it. Now she’s poisoning our relationship with my dad. At this time I don’t know what to do, I am forced to be around this female who’s literally stealing my dad from me. I’m from way on how to deal with the situation, my dad doesn’t ask me personally how I feel about this connection, he clearly doesn’t value my feelings in all of the. I really love my dad yet I fear this brand new woman is going to cost him our relationship.

What should I do about the situation? someone please help me physique this out.

TLDR: My dad’s child girlfriend is usually lying to him about me being rude.