IS IT TRUE THAT LOVING SOMEONE IS SO TORTUROUS

"A lot of people say: Loving a woman is excruciating. But, actually, what is very excruciating is: Loving people who don't love you." (Imam Shafi'i) "It's misery when you love someone and that person you love turns out to love someone else. Or, when you want to do good to someone, but they want to harm you." (Imam Shafi'i) "Love is a matter of heart and feelings, sharpen your heart and feelings so as not to be deceived by love." (AsKus)