Posted on relationship advice, but still unsure what to do..

I met a girl at a bar a few weeks ago (she's the bartender) turns out after chatting a few times, we had some classes together in college. She asks me if I go often to the bar she works at, I said ya often enough, she gives me her number and asks me to text her when I’m going to the bar next time.

I text her during the week and make small talk asking if the offer was only good for Friday nights. We chat a little and she tells me about her summer and such. Shortly after, she doesn’t respond my text, but no biggie. I text her Friday night and ask her to put my name on guestlist as I'll be heading to her bar later.

We talk a little at the bar, but seeing as how it's busy and loud any attempts to talk end up with nothing significant. While at the bar she gave myself and some friends some free drinks and my night barely cost me anything (20$ for 4 shots and a beer). The next day I thanked her for the hook-up and she says it's no problem and anytime I go just let her know.

Now this weekend I was going to a friend’s cottage and didn't have any reception all weekend. Once I finally turn my phone back on Sunday, I have message from her asking if I was going out to her bar that night. I responded later stating that I was away for the weekend and wouldn't be going. No response on her part.

My question is, is this girl interested in me or simply interested in my money/tips? I'm not sure if this is what they normally when they want to build a client base. We have things in common and she offered me her number (I didn't ask for it) plus we have had small talk outside of her job.

TL DR: Got bartenders number, went to bar, talked a little, week later she asks if I was going again, potential hook-up?