I am writing my own story after seeing a post about someone's biggest regret after marriage

Hello, I am writing this with courage during a very difficult time after seeing a post uploaded to this community.
I dated for 4 years, got married, and 6 years later, I had a son last year.
My wife started having affairs as soon as she gave birth to our first child last October,
and the number of men she has cheated with that I've found so far is 5... I think the number could be even higher because she had many one-night stands.
I assume most of them didn't know she was a married woman, but one person knew she was married.
However, she refuses to say who that person is, so I don't know his identity.
My wife's family also has significantly less financial power than mine. Although I haven't specifically helped her family, my wife
had a history of extreme extravagance; she went through individual rehabilitation before marriage, and after marriage, she accumulated 70 million won in debt, which I paid off for her.
I paid it off thinking it was depression caused by childbirth, but looking back now, I suspect she spent it on her lovers.
After the baby was born, I looked after the child alone four days a week.
We live in Daegu, but my wife used the excuse of receiving psychiatric treatment in Seoul to
leave home and spent nearly 8 months in Seoul with several lovers four days a week.
While I was working two jobs to pay off the 70 million won debt and raising the child almost entirely on my own, she was having affairs.
When she was caught cheating, she left the house, but since she had nowhere to stay,
she secretly used my younger sibling's card to pay 2 million won for accommodations.
When I suggested a mutual divorce, she tricked me by saying she had no money right now, but if I sent her some, she would do everything in her power to cooperate with the mutual divorce. I sent the money,
but she used it for divorce lawyer fees and is now mocking me.
Later, when my wife said she missed the child, she came to the house with the police,
but she deceived both the police and me, and along with her mother, kidnapped the child and went to her mother's house in Seoul.
I have reported the kidnapping, and an investigation is underway.
The police told me that since I am the actual primary caregiver, physically kidnapping the child constitutes a criminal offense,
but since the divorce is not yet finalized, I am waiting to see how it will be concluded.
Shortly after the kidnapping, my wife filed for divorce first based on lies that I never even committed.
My mother-in-law and wife are treating me like an enemy,
and the division of assets my wife claimed from me is five times the amount my lawyer estimated.
Being betrayed by the wife I trusted, having my child taken away, and facing such absurd demands for asset division makes me want to die.
I thought about writing a vent post to the community, but I was afraid my mental state was too weak and I might break down, so I only thought about it until I saw someone else's story and decided to write this.
Lately, things are so hard, work isn't going well, and my depression is at its limit.
Even if I want to die, I can't, because dying would only benefit that woman and would ruin my son's life.