Stupid girly drama

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As the subject says, if you can't handle girly feuds, this isn't for you.

So basically I have a friend. I do things for her all the time. I have spent a lot of money and my own resources on her, I let her come to my house whenever she wants, I have stayed up hours at night talking to her when she is upset. I have gone out of my way to do things for her that I would normally charge other people for but free for her. When she was depressed, I was constantly there to help her.

So I hooked her up with my brother in law because I thought they would be a good match. Within two weeks he is her entire world, and I wasn't upset by that. I get that she loves him.
HOWEVER the thing that has bothered me, is that she tweets things like "I have no friends" and makes posts saying "The only people I care about are my boyfriend and mom."
And once even made a picture collage saying "I love my friends!" and left me out. This has happened at least 7 or so times and each time it left me feeling so unappreciated and I swear she is doing it on purpose. In fact the only time she ever makes an effort to contact me first is to talk shit about a her boyfriend's ex girlfriend. She also doesn't like that I am close to another friend who spoke to her boyfriend's ex. And I think that is why she is doing this.
I have talked to her about it but excuses of "I am having a hard time" just get brought up and I don't know how to respond to that. It doesn't seem genuine at all.

What should I do?