Please don't take this the wrong way (I can see you are upset and understand why). But I do think there is a false assumption in this post, and I would like to flag it as hopefully it will make you feel better to see if.
You assume that because she would need you to tell her how to support you, that means she doesn't actually care for you.
That doesn't follow at all.
If she didn't care for you she would have no interest in supporting you full stop.
It seems that this woman DOES want to support you, she just needs you to tell her how to do it. She cares, she just isn't a natural empath.
You sound quite like me - I give and give in friendships/relationships - I pride myself on my open and loving heart. It's the thing I like most about myself.
But at the same time, if others don't give the same back, in the end I start to resent it and it does turn me against them a bit.
It's something I really want to work on. I want to keep giving, but also accept that others have different priorities, and show their love differently.
I really want to accept that we are all different, with different strengths, and that the way I am in frridnships isn't the only right way to be. But sometimes it's difficult.
Your posts sound like things I could have written myself, so perhaps you are a bit the same.