<human>: So me and my girlfriend of a year and a bit broke up almost a month ago, and I loved her, truly I did. She broke up with me OVER TEXT and ONLY BECAUSE I started smoking, we are both 17. Very immature, and we were never overly physical with each other or anything.
Now here is the interesting part, I have had a HUGE crush on this girl, who happened to be my little sisters friend for almost a YEAR at this point. When I first met her I learned that she was a fellow redditor, which got me very excited about her. I wanted to be her friend, but it was awkward with her being my little sisters friend. Over the last year I've learned a LOT about her, mostly that shes a HUGE redditor, likes to play skyrim, is a friEnt and doesn't mind me smoking. Plus shes a little cutie, and to me extremely beautiful.
So when my original girlfriend of the year broke up with me, I started to feel like I could feel my way back into the world and meet someone that I really belong with. I had hung out with a BUNCH of girls in the meantime, but after about 3 weeks or so, I hung out with this friend of my sisters again, and I was EXTREMELY attracted to her. Her taste in music, her redditing, her appearance, her gamerness, her openness to me smoking and her smoking pot, all HUGE plusses, plus I've been crushing on her for almost a YEAR! Anyways, long story short I took her out, asked her out and she said yes, and we've been chilling a bit lately and having a lot of fun.
My sister is PISSED that I am dating her best friend, and so she went and told this girl in a LONG message that she is just a REBOUND for me, and got her all tight and shit about it... I really don't know how to prove to her that she isn't just a rebound, and that I really do care about her.

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: Started dating sisters friend 1 month after getting dumped from long term relationship, she thinks shes a rebound but I actually have liked her for almost a year now. The opportunity just came up now.