This happened to me in my last relationship. It was exhausting after so long of hearing the same “I hate myself, I’m so fat, this and that, I’m so ugly.” You can only help someone so much and encourage them before you just can’t. Also it gets tiring feeling like you are trying to constantly pull someone out of a rut. You have to help yourself at some point because it’s draining on others especially your partner.
To answer your question I think it’s the feeling that we’ve given it our all and you start feeling helpless. That’s when your empathy stops. You know how sometimes you try and try and try at something until you have to either ask for help or give up? That’s the feeling. You feel defeated. You don’t know how to help anymore and that starts consuming your mind and stressing you out like you have never been. It’s a total mind fuck tbh.
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