Met this broad at an Improv class a few weeks ago. She approaches me and we start talking. I end up walking her to the subway and get her number. Next week I invite her out after class to lunch. We have a good time, I am not that sure I am into her as she is not that hot, but very funny. I walk her to her subway and do not kiss, just hug.
Then we chat more during the week via text and she invites me to her house for brunch the following week. I go. There, I meet her roommate who is a life coach or some shit and is totally into me, it seems. While there, I don't get to spend much time with my friend because she's hosting. Upon leaving, the roommate (Allison) facebooks me IMMEDIATELY. I then accept, and add my friend (Kelly) as well. Upon leaving I should say I am vibing a distance. At this point I am kind of not gettting as warm a vibe from Kelly. Not sure why, but that's me. Then the following week this is our text exchange.
Me: Hey Thanks for inviting me for brunch. It was really fun to get out of the city for a while and that was refreshing.
Kelly: Hey!! You're so welcome. I am glad you had fun. Many more parties hopefully. Hope you're having a good week.
Me: Oh a great week filled with sweater vests and the like. I'm working in CT this week, but lets get several drinks on Thursday

Kelly: Oooh that sounds tempting but I already made plans for Thursday. Rain check?
Me: Sure, I am actually working in nyc next week so let me know what day works best and we'll paint the town red:)
Kelly: Woop Woop! I'll let ya know!
This was last Tuesday. I was assuming to hear from her anytime between now and this Tuesday but nothing. What the helllllll could have happened and why do I seem to always have the girl lose interest in me after the second date?