I am sooo sorry to hear what you are going thru. I can also understand being the "nice guy".
But, I really liked what PearlHarbr said about being "neighborly nice". Hmmmm...that is food for thought and behaviour change!
I don't have anything new to add...but, wanted to let you know that I hear your pain and well....like you said to me, it will get better and clearer with time.
And, I would say if she is not accessible to you, you should not be to her. Does that make sense?