what exactly constitutes a ssm again? how is it clearly defined?

sex once a month? no sexual urges from spouse at all? never being able to discuss sex in a serious or joking tone? having one's spouse feel that sex, in general, is dirty?
always having a spouse push you away whenever you want to make-out?


spouse always worried about the kids being around preventing anykind of sexual arousal? having a spouse be completely closed-minded about the topic of sex?


never having your spouse initiate sex, or act romantically towards you, or always feel that sex is a big chore?