Am I wrong for hating my father?

So my father brought his cousin to our house because of educational purpose almost 3 years ago. she is just 5 years older than me and she's in varsity 3rd year. she's literally gorgeous, slim and looks like a model. she is from suburban area and isn't a bright student. she and me got along every time. she's kind of a childhood friend. everytime we went to my grandpa's we spent a lot of time together and have sleepovers too so my father knew her very well. So after her hsc he persuaded her to come to our house for admission preparations and that's not something he discussed with us. My mother for whatever reason didn't approve of it but he insisted. he did almost everything for her a gaurdian does for their own child. he wanted to pay for her varsity and kind of adopt her when her own father and brother are there for her lmao. even he took one day leave from his office cuz someone had to take her for exam. he's very introvert but around her he was talkative. I started feeling that somethings wrong in there cuz he never talks or discusses this much with my mother. i requested him to sent her to hostels but he denied. later on huge arguments took over at our house and my mother started behaving weird. I suffered from severe anxiety and insomnia. couldn't sleep for almost two months. i stopped talking to my one time bestie , and my only comfort person for almost two years. she got engaged to her long time boyfriend almost two years ago and is focused on him now. She wanted to get married too but my lovely father interrupted only god knows why when her family was thinking about marrying her off. but due to his interruption , she only got engaged. something was very clear at that moment. my father always says je bhalo kaj kortesi ekta meyeke poraye. But i'm definitely sure if only she had shown any kind of interest on my father, our family would have been doomed. now me and my friend have reconciled. kudos to her for not wrecking my home.

Am I wrong for hating my father?
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