📕5 years of marriage, my wife never let our son call her mom, so I found him another one

📖 Story Synopsis:
My wife and I are colleagues at the hospital.
We've been married for five years, but we’ve never made our relationship public.
The most absurd part is that she never allows our son to call her "Mom."
This is because the beginning of our marriage was the result of a drunken mistake.
She married me because she was pregnant and hated me for it.
Later, when colleagues came over for a dinner party, she forced me to take our child and stay at a hotel.
I thought that my patience and tolerance would eventually win her heart.
But when I returned home the next day, I happened to bump into her crush walking out of the bedroom in his pajamas.