<human>: I (M19) used to hook up with a girl(F18) who I had crush on for a year. Over that year we were talking for a long time but we lived far away from each other (150ish miles) so we never became anything serious.  2 years later we're still friends and attended the same college, and she has a boyfriend while I am single.  Come second semester I meet some cool girls including one of the coolest girls I've ever met.  After meeting her twice I ask my bud if she is single and he tells me no and that she had a boyfriend. Bummer, but life moves on.  I was all good and accepting that I was not with either of the girls I liked at the moment because I was alright with going out single a lot in college.  However, 2 weeks ago my old friend started flirting a lot with me.
   This past Friday started my spring break, and I went to my friends house with a bunch of people, including the girl of my dreams.  Over the past few days I've caught her staring a little and flirting a little, despite having a boyfriend. I knew it it may not have been a conscious thing, but it was pretty clear. 
Past night I get a text from my old friends roommate that old friend is now single and it's my time to make a move.
So, do I go for the newly single girl who I've been friends with for a long time or the girl  who currently has a boyfriend but is starting to show signals?

Can you provide a brief rundown of the text in within 3 sentences?
<bot>: should I date my old friend who is now single or try for a long shot new girl that I might have a chance with?