<human>: Can you give me a shortened version of the text?

So there is this girl, incredibly awesome, but quiet depressed, her sister **( my best friend )** told me that she was a good fit for me, but, her family is always complaining how cold she is, and how she was extremly bored with most of boys after 2 weeks, and she never liked anybody. So i started talking to her and hanging out with her.

But she was always trying to hide her feelings, never answering serious questions , avoiding them or answering with stuuuupid answers. I kept talking to her, she finally answerd me on why is she is like this and told me her story.

She was never up to go out with me, always had this "thing" , and answers texts after hours and hours

But, after i time, I had enough of this shit, so i blocked her on Facebook, because i just didn't know if she wanted me in her life or no, and it was exhausting always trying to find out. 

So after i blocked her, i went out with her sister. And she showed up, with her bestfriend ( F/19 ) to just say hi to HER sister only. 

After a week, her sister told me that she was sorry for whatever i blocked her, and i liked this girl, so i was eager to unblock her.

I started talking to her bestfriend, and one day she was like " remember that day when you blocked her, she insisted on going downtown just to see you. " and that she always talked about me or that she sees me as someone special

And lately, she started being sooooooooooo moody, like one day she started calling me every 5 minutes or so, just to say hi, and one day, out of nowhere, ignoring me all day.

And i just can't keep up. What should i do ? What does she want ?
<bot>: i'm so confused by a girl, being sometimes overly nice, and sometimes overly cold. And i don't know what can i do about this