My mother hot boyfriend

My dad was the owner of a company really big and he was really rich.He always said he really loved my mother.After sometime after they got married,they had there first and only child,me.My mom is young and like to go out with her friends,so my dad was the one who took care of me.I was really close to him and I loved him.But my mom sometimes cheat on him,everyone knew it,even my father.But he loved her so much that he pretanded that nothing have happened. One day my dad got really sick and died.By that time I felt so lonely because my mother was never home,she always go out to parties and come back just on the other day.Since my father's death my mom start dating lost if boys,she always shows up with one almost every month or week!They are always young-some have my age!-and good looking.Some lived with us for a while. One day my mom did something that I will never forgive her....what I did to deserve a mom like her?