Sounds like an attention whore if you ask me.
She's not interested in you. Not that you're a bad guy, just that when girls answer with short things like that over and over again, they're talking to multiple guys and just absorbing as much attention as possible. It's just like girls posting fb pics and saying "I'm so ugly". Immediate response by 50 horny guys looking to move out of the friend zone. Sorry bud.
I saw a meme that was a bit like this with the one word replies, the funniest but truest comment in the comment section was that shes probably talking to a guy she likes more.
Also, when chatting on Facebook, I try to at least reply with a sentence or try to move the conversation along even if I don't give a shit. Then eventually I will make an excuse and leave. I think in this situation she is just bored or busy and can't be bothered to actually tell you, so she's just BSing. Conversations are two way streets.
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