<human>: So I took a girl on a date. We went to a pizza place, I brought wine, and we had a fantastic time. She was happy and laughing the entire time, and conversation flowed effortlessly. At the end of the date, we made out a little and I took her home, adding "we should do this again sometime", to which she responded "absolutely". I sent her the address to my party, she said she'd come through, but it got busted and she was apologizing and literally said "it won't always be like this". I thought she was into me for sure.

Next day, I see her out and she gives me the cold shoulder. Granted, her friends from out of town are here so I give her the benefit of the doubt. But it's still tough. I see her at a party the next night and say hey but that's about it. Then, this morning I saw her at the library and texted her asking for a coffee break about an hour later. She said "no I'm doing work all day". I had previously seen her chilling with her friends outside so didn't seem too legit. I concluded she wasn't into me and kind of gave up (Brad Pitt rule). Later though I walked upstairs to see a friend, walked back out and she was just standing there alone. Maybe I'm reading too much into it but it felt like she was waiting for me.

Given this information, and that she invited me to a crush party last year (didn't work out though), is she into me? I don't know if the Brad Pitt rule should be employed her. Was the way she was at the date just a facade as a "thank you"? It felt real, but idk.

Provide a brief overview of the text.
<bot>: we had a great first date, and we hooked up. Since, she's been sending very mixed signals and even declined a quick coffee break. Am I out of it or am I overreacting?