I'm gonna let her go

I've been trying to develop a friendship with a woman, but when writing about the clique incident earlier today I decided it was time to let that go. She's not quite so clique-ish, but she is an accepted member of that clique. She has said that she wants to expand our friendship too, but it just isn't working out. Almost all the socializing I do, she could be part of whereas most of the socializing she does, I'm excluded from.
We have common areas: We both had parents who loved us but were terrible for our self-esteem (for me it was my father and for her it was a now deceased mother); we both have been dealing with depression; we've got household issues; we love our kids but find their personalities a challenge; we have creative aspirations but have a hard time being able to express them; we are both married to men who's self centered behavior is a hindrance to a happy marriage; we're on similar minded spiritual journeys; and we have some of the same personality traits.
I think that 2 things are the bulk of the reason we're not working out, we don't live in the same neighborhood and our kids are not the same ages or genders. However, I can't help but feeling the same way I felt at the table last Saturday. I wonder if she was being polite, but had no real interest in me. I don't want to feel that way so, I'm letting the possibility go. Even if her intention was sincere, I don't think she'll notice.