This is probably a topic that can’t be “painted with a broad brush stroke” - I expect answers to vary widely based on a number of factors.
In my experience, cheating / adultery is often disconnected from love.
KK has never been happily monogamous. In our relationship, KK’s cheated for lots of reasons; revenge, curiosity, boredom, loneliness, and just plain simple lust. Sometimes alcohol and ...... were involved.
We’re still together, and we love each other, despite the past infidelity on both sides of the relationship. If I’m honest with myself, I find KK’s infidelities hot - erotic, wildly stimulating, especially those where KK was engaging in the cheating to satisfy her sexual desires.