The negative view of monogamy is the Internet amplifying the most controversial "hot take" because it gets more clicks than "Do what thou will".

I was monogamous with my wife for about 8 years and I loved her and I think I still love her even though we broke up and probably won't be together again romantically ever.

I would say that monogamy, right now, is _not for me_. I just crave adventure, I'm a contrarian, I want more out of life than the standard, I want to sleep around. The revealed preference is that I want every aspect of my life to be "different" whether that's desktop Linux, veganism, changing my gender, etc.

If I had left that marriage and got into another monogamous relationship, in a few months I'd be wanting to date other people again.