People seem to have these mistaken impressions, especially surrounding what they consider ‘other’ types of relationships beyond monogamy. That it’s 24/7/365 orgies, sex any and everywhere. Kids? pfft it’s fine, they won’t notice.
As with any relationship, mono, poly, swinging, whatever, you have to make time for it. And being something other than mono doesn’t mean you’re depraved.
It’s sad you were attacked and felt the need to defend yourself and your relationship. But it’s also not surprising at all. Good for you, being a woman, mother, and wife and knowing they are all okay to be separately!