I grew up in Guatemala. You might know its one of the most unequal countries in the world - you're either in the rich class or poor.
I don't have a degree, don't have professional level skills or business skills. I worked for everything I had, never had much money. But nothing too bad - usually had enough food.
Two years ago I met a gringa in a tourist spot. I'm good with girls and we ended up sleeping together that night. We are both in out mid-30s.
Then I found out she's married. Married tourist looking for some cock on vacation - old story.
She has a rich husband and three children. I think she is from a rich family and her husband is also from a rich family, so between them it's double-rich. She mentioned having "oil rights", she mentioned multiple homes (I think over 20 rental properties).
Since then, I have done little bits of social media work for her businesses - it is easy work anyone could do, just running the company's facebook page and stuff. Plus we see each other in the Caribbean/Latin America and sleeping together for a week here and there. Since two years. She started saying "I love you" six months ago.
One time she said, "something something.... because you've already made your money...". I didn't let my reaction show. She assumed I was in her social class!. Just because people assume their life is the normal life. It feels normal to her to have multiple houses and a million a year in passive income (or whatever number), she thinks everyone she meets is probably like that.
Now she is starting a business, has almost finished investor funding. I let her keep thinking I am rich, and I asked for a big salary for my social media role. She is offering me more money than anyone in my village ever had, plus a percentage of the company. If the company works, it could be millions of dollars. I have seen the contract now, and with luck we will sign in one or two months. I can't fuck it up now.
Yes this is a sin because it is adultery. But I have the opportunity on a plate. The only thing I've ever been good at and I can use it to climb the social ladder.
Congratulations. Do what it takes to climb out of poverty, but try not to lose your morals when you get out--that's a hard thing to do. Lifting other people up is far more rewarding than a fast car, or anything else money can buy. And, while you're at it, maybe you can teach your girlfriend a thing or two.
Also, remember, you aren't married (I assume), so you're not the one cheating, you didn't break any promises or sign any contract. The worst you've done is break an imposed social contract. My wife cheated on me, I didn't blame the guy she cheated with, I blamed her, she's the one who took the vows. She could have walked away without cheating, but she chose to cheat instead.