Is AUTHOR wrong in the post ? POST : This one needs a little back story. 

My father is an alcoholic. He drinks a lot on weekends, but somehow manages to sober up before work during the week. 

His drinking has affected me very negatively over the years, as I've bottled up my thoughts and feelings while listening to his drunk tirades and verbal abuse, which in some cases has turned physical. 

Despite his drinking, he does try. He helped me buy my first car by covering half the cost, helped me enroll in college and many other things. 

However, the straw that broke the camel's back was when we ended up moving the phone bill to my credit card. He promised to pay me back each month, but missed the payment twice, which ultimately ended up costing me when I was unable to purchase lab supplies. 

I ended up losing my head, and for the first time in my life, yelled at him over the phone. This was in September, and I haven't spoken to him since as I live with my mother (and will be moving in to my own apartment very soon). 

He's tried calling me several times in the past months, and has tried twice just today. I've ignored all of his calls. 

AITA for not answering?