I’m sorry, but you answered your own question. The thing you were doing wrong is making anyone else your ‘whole life.’ You even say you don’t have friends. It’s not healthy or fair to put the weight on one person to be your only form of emotional support. Expand your circle and focus on yourself before trying to make one relationship fulfill all your needs.

You need a better goal than that

Your situation sucks and I am truly sorry for what you are going through. One of the hardest things a person can do is work on themselves. I agree with the other comments, it doesn't change my sympathy for your sadness but must also encourage you to take this opportunity to learn how to make yourself happy, to learn how to be happy on your own, before you add another person like a partner to your life. It will be very hard, but I assure you it is an important life skill. We must share our lives with others because we want to, not because we NEED to, anything else sets up an unequal power dynamic that can end, as yours did, in heartbreak and hopelessness. You are stronger than you think, get up and love yourself: charity and caring begin at home.

that happened to me as well

as you said you don't have any friends. you must rely on him for all the things and he must only one you are spending all your time with. you feel better when you have friends and other people in your life