早恋:puppy love
黄昏恋:twilight romance
姐弟恋:romance with younger man
三角恋:love triangle
精神恋爱:platonic love
单恋:unrequited love
相思:lovesick
相亲:blind date
速配:speed dating
老情人:old flame
一夜情:one-night stand
网恋:cyber love 合法婚姻:legal marriage
再婚:remarry
重婚:bigamy
试婚:trial marriage
包办婚姻:arranged marriage
近亲结婚:intermarriage
老少配:May and December marriage
如意郎君:Mr.Right
闪婚:flash marriage
婚前检查:premarital check-ups
一夫一妻:monogamy
离婚:divorce