The M&M game definitely sounds interesting.
Another game, Midlife Crisis, had some similarities (wife of 20+ years. Paths: cheat on wife, wife helps hubby with women and sometimes participates herself, or wife + hubby swinging with other couples). Amazing writing but it was unfortunately abandoned in 2023.
I am somewhat leery of the "Brilliant but arrogant and manipulative protagonist", though.
For me at least I have to like the MC I'm playing as.
Still, looking forward to seeing what comes - good luck!