Does anyone feel sick to their stomach?

My SO recently fell (because he was drunk but he blames it on the rain) and broke his nose. I have been in caretaker mode and I absolutely hate it. I don't want to take care of him. Isn't that awful? I am constantly sick to my stomach and literally can't stand the sound my his voice. The way he sleeps when he drinks, the way he slurs his speech, the way he walks when he drinks, the way he justifies his drinking with every ounce of his being. I am sick to my stomach about it. I used to do so much for him. I used to help him when he fell asleep outside, or when he passed out in the living room. Now, I leave him and go be with my son. I protect him with my life. I will go play a game with him in his room or do a dance party in his room to avoid him even being around my son. I am literally disgusted by him. Isn't that bad? I haven't felt comforted or protected or loved in a really long time. I feel alone. I feel used. I feel like I am so busy lifting every one else up that there is no one there to lift me up.

I am tired and angry all the time. I hate this person I have become and Ive finally reached my limit.