house_feud_ai_seduce_start_trigger

house_feud_ai_seduce_start_trigger = {
	save_temporary_scope_as = instigator_temp
	NOR = {
		has_trait = chaste
		has_trait = devoted
	}
	might_cheat_on_every_partner_trigger = yes
	house ?= {
		any_house_relation = {
			has_house_relation_parameter = members_more_likely_to_scheme_hostile
			any_relation_house = {
				NOT = { this = scope:instigator_temp.house }
				any_house_member = {
					is_married = yes
					save_temporary_scope_as = seduce_victim_temp
					any_spouse = {
						trigger_if = {
							limit = {
								exists = house
								house != scope:seduce_victim_temp.house
							}								
						}
						NOT = {
							has_any_good_relationship_with_character_trigger = { CHARACTER = scope:seduce_victim_temp }
						}
						save_temporary_scope_as = seduce_spouse_temp
					}
				}
			}
		}
	}
	trigger_if = {
		limit = {
			exists = scope:seduce_victim_temp
			exists = scope:seduce_spouse_temp
		}
		NOR = {
			has_any_good_relationship_with_character_trigger = { CHARACTER = scope:seduce_victim_temp }
			has_any_bad_relationship_with_character_trigger = { CHARACTER = scope:seduce_spouse_temp }
		}
		can_start_scheme = {
			type = seduce
			target_character = scope:seduce_spouse_temp
		}
	}
	trigger_else = { always = no }
}

As written in game/common/scripted_triggers/03_bp1_scripted_triggers.txt.