<human>: I don't feel like we are a good fit for one another. I have found that I am too dependent and clingy, and that she is very into her own independence. She really wants to keep the relationship going, and as of late has constantly been talking about marriage, but I don't really know how to let her know that the relationship just isn't working. We've been together for 9 months, living together for 9 months, and we have a dog together as of about 2 months ago. (The dog is under my name, she's an emotional service dog).

I feel that I personally work better without a SO because I am too paranoid about her cheating on me deep down to make the relationship last. On top of that, I have depression and anxiety that certainly don't make things better. She keeps trying to hold on, and won't let go of the relationship, and I'm unsure of whether or not I should stop moping and try to put the relationship back on track or just to end it once and for all. Am I just spineless, jealous and weak?

Can you summarize the given text in a few sentences?
<bot>: I feel like I should break up with my girlfriend to save her from myself, and I don't feel right about the relationship.