My dad left my mom for my aunt

This is going to be a really long read so I apologize but I want to make sure that I don’t leave too many of the details out.

I am 28 years old and am single so I don’t have anyone to talk to this about, I am also an only child so I feel even more isolated. My parents have been married for 30 years but they did marry when they were 18 and 19 so they are reaching their 50s.

Ever since I can remember my parents had an unhappy marriage, they would constantly fight about bills and how my father never wanted children (he would never tell me to my face but I would overhear them arguing while I held a cup against the wall) and how he felt trapped. I tried to be a good student in school, took elective classes and even was in choir. Whenever my dad got home I tried to stay out of his way as I knew he didn’t seem to care for me much. He never admitted any of this to my face (obviously) so I was always too scared to confront him about it.

I used to always want to stay over my aunt Nancy (fake name) house to hang out with her kids since she was a single mother she let us watch tv all the time and eat junk food (which my parents rarely ever let me do). My mother got sick two years ago and fell and when she had corrective surgery on her knee it did not work out and she had an additional surgery to have her leg removed. My mom confided in me last night and started to cry that my father had been having an affair with my aunt nancy for years.

My mom never wanted to leave because she was eager to keep us a family, and I don’t judge her for it as my dad wasnt openly rude to me and she couldn’t afford to raise me on her own as she only had a part time job with little education. I guess the affair started when I was a kid and stopped and resumed within the last 6 months. I feel so lost and confused and I have no idea what to do or where to turn.

Someone pray for me and give me advice.. my mom is honestly the best and hardest working person out there and I am so lucky to have her but since she’s not working and I am working part time trying to go to school I feel helpless 😢