I am not a fan of infidelity. I prefer that members of monogamous relationship honor monogamy. I assume it to be a condition of mutual consent. I consider breech of that agreement to be a moral failure.
Migrating from that circumstance, one that is so prevalent, into the determination of fitness for office be it POTUS or DCIA or Representative TN or whatever is a more difficult path for me to follow.
For me, it matters if it matters an it doesn't if it doesn't.
It is a this is this situation.
I can't say I know what this is.
Others decide.
But I suspect God didn't carve out 20% of his Top Ten List for a thing that was particularly rare or obscure.