My close friend (and crush) is getting extremely boring?

She used to be fun. She's a Facebook addict, and hardly goes outside. She pretty much lives there. After school, the rest of my friends and I (even the girls) usually travel places and hang out, like yesterday, we all went to Central Park (We all live in NYC) and she just went home, and spent all Friday night on Facebook. And whenever we have a conversation I find myself struggling to stay interested. On Thursday, she honestly spent the bus ride home listing her favorite kinds of beans. It's almost as if talking to her is like talking to a little kid who just learned a new word. I tried inviting her to go places, but she always flakes at the last minute. And I tried meeting her in the middle and talking over Facebook, but she's boring there too, all she does is text "lol :p" and then scrambles her fingers across the keyboard and sends something like "adfsdsdsrfssdfs". And then she gets upset when she loses my attention. Like I can have a deep conversation with one of my friends, and she'll interrupt us, say something like "I'm hungry" or "I'm tired" and nothing else. And on the rare occasion she has anything relatively interesting to say, all she does is talk about TV. Honestly, we haven't had a full interesting conversation since like November. And her best friend is her neighbor, but they hardly ever see each other. Her neighbor is even more socially active than me. Only uses Facebook once every 3 months. But my friend complains because her neighbor won't visit her, but that's because she invites her out, but she decides to stay home. How am I supposed to stay socially interested if she's just that boring?