<human>: Sorry for posting this in this sub-reddit, I'm pretty sure that there are somewhere else for this post. I will try to keep this short but it may be long so please bear with me. 

Well I met this girl, we talked and openly flirt with each other. Later, she starts getting quiet, I asked her what's wrong but all she did was look away and spoke in a really soft voice. She didn't tell me that she already had a boyfriend, so when I found out I didn't believe it since I thought it was a joke. I kept on trying to talk to her but all she did was look away, spoke softly and walked really slowly. It really looked like she was about to cry. I know because I have seen her cried before. Anyways, I finally got myself to ask her to spend the weekend with me but all she said was "I'm busy because I have SAT academy". Nothing about the boyfriend... Later on I send her a Facebook message saying that "Sunday may be a good time to hang out, since I know most SAT academy is closed on Sundays". Note that the message was sent on a Friday. Later on, she replied saying that she doesn't think it would be a good idea for me to hang-out with her, because she is going out with her boyfriend on Saturday. I replied, saying that it's really hard for me to say "good-bye" to her because I thought she would be the one! After a while, she said "If you could just leave me alone". My reply "Fine..." 

After that I didn't contact her for the weekend and today (Monday) I saw her on the hallway walking straight to her class, but she took another route, which is where I was standing. Does she want to talk to me or what? Does she actually hate me for not knowing about her having a boyfriend since she didn't mention about her boyfriend when we were flirting with each other? 

Oh and also, When she took the alternate route to her class, she just starred at me and walked to her class. At that point I was very sad because I have lost something that I cannot replace. Which is her.

Will it be wise to talk to her or just give her some space...

Can you summarize the given text in a few sentences?
<bot>: version: Met this girl, she and I both flirt openly, she suddenly needs space so talk to her or give her some space?