So I've been interested in a neighbor of mine have spent some time with her in the past few weeks. Somewhat of a road block is that I live with three others, as does she (she lives in the flat above me) and most time spent together has been in a group setting. I was however able to get her number, and had sent a few casual but flirtatious texts to her. One morning I texted her telling her to join me for breakfast at nice cafe in the neighborhood, to which she replied, "Oh man, I wish I could, I wanna see what the hype is about buy my friend and I are going to yoga at [said] Park. Rain check?" I replied "Deal." (maybe not the best response, but I'm not great at this.
About half a week later I asked her if she had dinner plans on a certain night, and she replied, "Ah yeah unfortunately I have to work late then am meeting up with a friend in [suburb]. Now I owe you two rain checks."
Normally two rainchecks would seem like avoidance, and I would move on, but we have since hung out, again in a group setting, and there were good signs. We were at a bar, and the two of us spoke to each other alone for an hour or so while our roommates played pool, then we played erotic photo hunt, and there was PDA--she put her hands on my shoulder and leaned against me and then stood in between my legs for a time while playing, we always sat next to each other slightly touching, etc.
On Saturday I asked her, "So how do I cash in on these rainchecks?" She acted as though she was thinking and said, "hmm, that's a good question." I said, "I can't have three, that'd be awkward," and it was kind of left at that.
I haven't followed up since as I don't want to sound desperate but feel like this could still go somewhere. Am I misreading signals and should let this go, or continue to pursue? If so, how should I pursue her?