elope_success_opinion_rivalry_effect

elope_success_opinion_rivalry_effect = {
	#Crime opinion
	add_opinion = {
		target = $CHARACTER$
		modifier = elopement_opinion
	}

	#Rivalry
	if = {
		limit = {
			can_set_relation_rival_trigger = { CHARACTER = $CHARACTER$ }
			is_ai = yes
			trigger_if = {
				limit = { is_spouse_of = $CHARACTER$ }
				ai_vengefulness >= low_positive_ai_value
			}
			trigger_else = {
				ai_vengefulness > 0
			}
		}
		if = {
			limit = {
				can_set_relation_nemesis_trigger = { CHARACTER = $CHARACTER$ }
				ai_vengefulness >= medium_positive_ai_value
			}
			set_relation_nemesis = {
				reason = nemesis_elopement
				copy_reason = rival
				target = $CHARACTER$
			}
		}
		else = {
			set_relation_rival = {
				target = $CHARACTER$
				reason = rival_eloped
			}
		}
	}
	else_if = {
		limit = {
			can_set_relation_potential_rival_trigger = { CHARACTER = $CHARACTER$ }
		}
		hidden_effect = { set_relation_potential_rival = $CHARACTER$ }
	}
}

As written in game/common/scripted_effects/00_scheme_scripted_effects.txt.