It`s not correct that only men should compliment women to make them happy, as men could even cheat on their gilrfriend because of luck of attention and compliments. You can say that if the person isn`t faithful by his nature he would cheat anyway, but relationship is a connection BETWEEN TWO PEOPLE, and they should give as much as they receive. Men also like to receive compliments and feel loved. Compliments can be expressed through kisses, tasty dinner, etc. It`s for you to decide. Dear men, don`t forget to tell your woman that she is the most beautiful and that she is worthy of the biggest diamond - I`m sure it will strenghten relationship.