Reposting about mom and dad

When i was 11 years old my dad went to serve in the Air Force far away in another city. My mom told me she was bored. Now here’s the strange bit. Why would she justify that she went out because she was lonely and upset at dad that he wasn’t around? She met up with my principal sir and spoke to him. They never did more than that but I could see she was emotionally attached. When my mom found out that my principal (let’s call him Sir) had lost his wife three years ago, she tried to sympathise with him. His wife’s name was Betty. Betty and Sir had two sons, and they were grown, a little over 20 and 25 years old. She proudly said she never had pity on them. Everyone asked him out of sympathy how she died and how he’s holding up. Unfortunately my mom took up the job of trying to help him more than she ought to. What do I mean by that? Sir used to overeat, filing the hole left by his wife’s death with fast food and eating out. He never felt fulfilled. He grew obese and unhappy. He stared down at us students in the halls, and rarely ever smiled or spoke lovingly. He was scary. My mom decided to help him get over his loss. She went to his house with me and spoke to him for hours. Then they started meeting up every other day. I used to sit with them and they would read the Bible. She would explain it to him and he would argue back. Who would understand this? He was going through some emotional problems. Instead of encouraging him to seek therapy, she took up the role of his saviour. Finally we reached a stage where we went almost every single day to read the Bible. During this time she was very stressed. She would scream at home at anyone she found. even me. I would quietly try to study though. When we went to sir’s house we wouldn’t come back till 9 or 10. This wasted a lot of my time. I felt abandoned by her. One day my dad had a glass of alcohol and it made him more honest. He said he fell in love with my mom at first sight. I thought it’s a mistake because of what she turned out to be. He continued saying he went to talk to her and ask her if she’ll marry him but she said no. She wanted to study for her PhD. It broke his heart to hear her say no so bluntly, but he said she can study after marriage as well, and she agreed. She went to study for a few weeks but came back home saying it was too much for her. Fast forward to today she complains and threatens to divorce him for no good reason. My friends say they should have divorced but then I wouldn’t be born. (I was born 8 years after my sister)
Okay but what about now? Should they? Maybe, maybe not. Divorced when? Before I was born? After I was born? Last year? Maybe they should have but it wouldn’t solve anything. Sometimes I wonder after all that hard work, will I be able to have children or not.
Separation is hard you know?