<human>: Can you summarize the given text in a few sentences?

So There is this girl, ill call her K. K was in my freshman chemistry lab, and was one of two lab partners I had. We had lab in the same building as our dorms, so we occasionally walked back from class together. One time we were walking back and she had a dinner to go to, but invited me to come up to her room for a while before that. Two things, She is super innocent, and I am 99.99999% sure it was just to hang out and meet me more personally (we had plenty of personal conversations while doing lab reports too), which I was okay with. I declined at that time out of respect for my then long distance girlfriend. Now this girl is for some reason filling my thoughts lately, and I want to talk to her and get a date (me and the long distance aren't together). Problem is, I don't go back to college for another two months, and I don't know if/how to talk to her now over facebook/text her, or if I should wait until we're back and just pop a text asking for a date or something. I have been in straight relationships for the past 4 years, so being open on the field is new to me. Thanks
<bot>: when should I contact a girl I have been thinking about. Now over text/facebook, or once we are back to college?