Definition: Given a real-life anecdote of a complex ethical situation, generate a suitable title that describes the main event/root cause of the situation. Imagine that the given text is a social media post, and you have to write the title of the post, so the users can decide to read the main text or not.
Input: I'm going to try and keep this short but there is a lot of details  
this all started a few months ago but for context ill start about two-ish years ago when my mother began divorcing my stepfather. when he first got the news from my mother that they were getting divorced he got pretty violent initially when he was living in the house still he stole my mother's med(not forgetting high more just to piss off my mother) and it only escalated from there. one my mother kicked him out of the house he would randomly show up and threaten to break in, fight me and my siblings etc but pretty much never when I the oldest child was there. one time he actually did break in while no one was home but my mother and sexually assaulted her, she chose not to file charges(a choice my nor my siblings agreed with). this prompted me to stay at her house all the time instead of swapping from week to week between her and my biological father's house so that I would be there when/if he ever showed up again. this lasted until I went back to college at the end of that summer. while I was away that first semester I struggled with depressive episodes and contact worrying about her and my sibling's safety while I was away and this in conjunction with other factors led to a lot of drinking and skipping class and ultimately a GPA of 1.4 something I am still trying to recover from. 

fast forward to about four months ago when I was in my room minding my business when I suddenly hear his voice upstairs and go up to see him in the kitchen talking to my mother in a civil manner but none the less I went back to my room and grabbed the baseball bat I had stashed under my bed and listened readily to go down and try and stop anything if he started to get violent.  when to my surprise she came into my room and told me that he was staying the night and they were getting back together and I told her I couldn't live or sleep in the same house as him so I gathered as much of my stuff as I could carry got in my car and went to my biological fathers house. I began gradually moving my things out of her house and trying to find a place for it but my bio-dads house is pretty small and I share a small room with my younger brother there and now I am looking for a place to live by myself permanently to get away from it all. my sister, however, thinks that we shouldn't abandon her and I am being stubborn in my original statement and that living in that house with him is not that big a deal because stepdad mostly minds his own business.

tl;dr my x-stepfather got violent after a divorce but now my mom is letting him move back in so I decided to leave her house permanently.

so my question is am I an asshole for leaving my mother and sister to live there with him while I am just trying to run away?

leaving my mother with her abuser