<human>: Not really sure if this goes here, but anyway...

I'm 16 and a sophomore in High School. I have never been very popular. I've never had a serious relationship before, so when I meet this new girl, I thought she would be the one. if anyone knows what is is like, it was love at first sight. We had so much in common, I could talk to her about anything and we both had the same type of humor (really dark which is only have with my best friends). I introduced her to my friends and we all hit it off. 

I thought we hit it off, and after about a month I managed the courage to ask her out. now before I go on, I would like to mention she used to suffer from a depression-esque symptom. This will become relevant in little bit. Anyway, I asked her out and she said that she didn't want a relationship right now. She said she was going through some stuff and she didn't want to get serious with anyone.

She didn't technically say no, she wanted to put it off. Ok, I was good with this. It wasen't awkward, and I wasn't sad knowing that we could be together at a later point. We continued to talk, but we slowly started to grow apart. She had counciling for her depression (which is why she 'turned' me down) so I assumed that she had more stuff to sort out.

About two weeks after I asked her out, we barely talked anymore. I found out at the end of the week that she started going out with one of my friends. I was furious and confused. She said that we would have a thing, she didn't want a relationship and she started dating one of my friends! 

We have started talking since, and I still really like this girl, but I just don't know what to do. /r/Relationships, please give me some advice. I have never meet anyone like this before and I don't want to lose her.

Provide a brief overview of the text.
<bot>: Asked my friend out, said she didn't wan't a relationship, began dating one of my friends about 2 weeks later