It's very simple. Do you value the assets she's providing more than the assets you're providing? And if so, is the difference in value larger than you would get by eschewing a relationship?
It sounds like, in your case, a mini-relationship may be warranted, but be careful not to fall in the trap 3 months later (or whenever) where you begin valuing her for who she was rather than who she is.
It sounds like, in your case, a mini-relationship may be warranted, but be careful not to fall in the trap 3 months later (or whenever) where you begin valuing her for who she was rather than who she is.