I feel more like a caretaker than a partner. Am I a bad partner?

We've been dating for 2 years, living together for 1.5 years due to unexpected circumstances. In the past year, her mental and physical health has declined, affecting her ability to work and function. I feel like our relationship has broken-down, and I can't provide the support they need. Despite my efforts, we constantly fight about my lack of emotional support. I’m exhausted, financially and mentally, covering most of our expenses on my fixed income. I love her but no longer feel "in love" and feel more like a caregiver. Ending things worries me because she needs help and has no one except me. What should I do?

I feel more like a caretaker than a partner. Am I a bad partner?
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