I can finally admit I’m not happy

I’ve been in a relationship for the last 3 years, i no longer feel like i get anything from it.. no happiness, no affection, no sex, no attention, no appreciation and no financial stability ( he is currently on the sick, so i am paying all bills ). I just know this isnt a relationship i want anymore, after months i can finally admit to myself that i’m not happy and feel lonely around him. Its just difficult because for a year we were long distance and he moved away from his family to be with me.. how can i end things knowing it will leave him with nothing? I dont have the heart to do that so i feel like i’m stuck just waiting for him to five up and let go..i just dont know what to do.. x