I'm back!!!!

almost 8 weeks sober now too. (opiate addiction)
Things have been looking up I'd say I'm 75% of the way back to operating temp.
Girl from work is on vacation, when she first started working there she flirted with me alot, gave me her number, and this when I was nearly over my head with drug abuse. She didn't know, although I've told her a few times she's never taken me seriously. So gaming was a bit out in left field as all I wanted was to be loved by someone else, while being high, thus creating the greatest high, but that didn't happen, I took too much before I went over to her house one night and that was what I thought was the end.
We go to work, do our jobs, chat once in a while, she tells me about her day and random stuff. And she has a boyfriend. So I just stopped pursuing her out of respect for the both of them, this being 4 months ago or so.
Today she sent me a message asking if I missed her(she's on vacation), just out of the blue in the morning.
I said something like you've been gone less than 24hours! but i miss you terbly how's france? This was on facebook.
I let it fester over the day and thought I'd text her: do you miss me?
she said something like awww sounds like somebody misses me
I said: maybe i do, but you still haven't answered the question
she said: no i don't think i could ever miss u, what are you up to
I waited, told her i was at work, and some bullshit drama that happened at work.
Question:
Where do I take this, part of me says it's always on, and she's interested in me now, and part of me says she was just looking for attention.
As for the boyfriend thing, i think attractive girls are always going to have a guy lined up before they do break up with a current boyfriend.
Thoughts?
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