AITA for telling the girl I was interested in to get my stepsisters away from me?

This is a bit weird, I (m28) recently found the girl of my dreams. She (f26) is absolutely perfect and I can imagine spending the rest of my life with her. The only problem is that my stepsisters are college aged (f18 and f22) and are obsessed with me because I look like Noah Mills. I don't know what it is about them, but they can't let it go. My father (m60) married their mother (f50) when I was 12 and I was a gawky kid in middle school. I'm not at fault for how I look. <br><br>They constantly hit on me and try to get my attention. My dad says my stepmom should take care of it but she says my dad should handle his own son. That obviously didn't go well and my dad just told me to handle it and I told him to handle his own family. My stepsisters are still persistent and when my dad came through my door with his stepsister in The Notebook, I thought I was being pranked. <br><br>I met this girl (f26) who I really liked and decided I wanted to spend the rest of my life with her. So I told her the next time my stepsisters are rude, that's my cue. A couple of nights later, we were all at a restaurant and my stepsisters were flirting nonstop with me. My lady had had enough and told them that they were acting very rudely to someone who didn't want their attention. I told them to get away from me like my dad said I should. The restaurant went silent and my dad and stepmom started yelling at me, saying we were being very mean when my stepsisters were just being friendly. My stepsisters were crying and my lady took me outside. <br><br>We walked away from the restaurant and I asked her if she was done with me and she said not at all. She said I was right and this was a sticky situation and she was more interested in me than ever. The stepsisters, dad, and stepmom filed a police report and had my lady charged with harassment because she told them to leave me alone. She's hiring a lawyer and I hired her one, but I'm still waiting for her to leave me for bringing drama into her life.