<human>: Summarize the given text in a few sentences.

My life these past years has been difficult.  I'm 21 and a lot has happened to take whatever foundation I've had out from beneath my feet.  Life for me has been moderate depression with low self-confidence and no direction in life.

A couple months ago came the first truly positive thing to happen to me in a long time.  I found a new circle of friends and somehow mustered enough energy and optimism to really put myself out there and connect.  It was new for me, but good.  There was also a girl and we hit it off really well.  It wasn't long before we were hanging out all the time, often just the two of us for hours.  I started liking her and I'm pretty sure she liked me too.  Just as I was preparing to ask her out, she started giving the cold shoulder.  It was out of nowhere.  It hurt.  There were weeks of confusion.  I finally got it from a friend that she, for whatever reason, decided she wasn't interested. 

So now, almost two months later, I'm still trying to get over her and it's very hard.  She was the first truly encouraging thing to happen to me in years.  Forgetting the joy and hope she brought me means turning off the only light in a dark and dismal life.  I want to continually feel that goodness and hope she created, but I know it's not healthy to cling that way.  

She was the closest thing I ever had to a girlfriend.  It's hard for me to cut my losses and move on because my loss brings me back to a dismal place except with a new wound to carry.
<bot>: I liked a girl and she liked me, but she changed her mind and I'm struggling to let go of the most hope I've felt in years.