<human>: Can you provide a brief overview of the text?

My gf and I have been dating for just under 2 years. I love her very much, but sometimes it's almost just platonic. I care about her and the last thing I want is to hurt her. Her self-esteem is always so low and she's not in a good financial/educational place and I just don't know what would happen if I broke up with her, and that has led me to keep making more and more difficult commitments, making it even harder to end things. I tell myself often that I'll wait just a few more months until things are better for her, but they aren't. I just feel like something is missing and that I've been sacrificing my own happiness to continue this for her. We're currently long distance, but I felt that way before, too. I care about her very much and I can't imagine being without her. I want to be there for her and help her through things so much, but I feel like something just isn't there for me. 

Obviously I haven't made any progress here, but I was hoping somebody here would have some suggestions for how to proceed. Even if the suggestion is to keep doing what I'm doing.
<bot>: Don't want to leave gf alone and in a bad situation but I feel like there is something missing. What should I do?