Hello, sorry for my English, it's not my main language.

There is a girl I met 2 times. On second meeting she brought a book for me as a gift (with a nice box and a bookmark) but I forgot to bring her book (which we talk about before). The next day I went to her workplace (hospital and working at night) gave her book but I stayed there about one and a half hours (mistake)

Nevermind we were texting everyday (mostly not long) since first meeting and she was asking what am I doing, am I reading book etc. Last Thursday she asked what am I doing and she told me my book is finished and she liked, I said "nice lets watch its movie on Sunday" (as like last week. because last Sunday we went to a park with laptop and chairs and watched movie in a nice place) she said ok. She was using all the time emojis and willing to talk. Then "I said I didn't finish your book but I will finish probably until this week ends if I don't have work and if you don't haunt. That was a joke she made me before, because she tried to prevent me to finish book by texting much to me one night. After this she changed. She said "ok I won't." with emoji 😒. Then I joked again "nevermind, this way not fun etc." and she didn't change. I didn't text her again that day.

Next day I finished half of the book and sent her with a pic of book and asked what is she doing. She answered "I'm working" and continued to talking coldly, said "I have a shift on Sunday". I said, "ok no problem by the way, I bought tickets for theatre we talked before for this Tuesday evening." She said "next week she will work at evening again, she chooses because its easy etc". I said ok, I have tickets for next weekend also ( I bought two days ago, it was cheap and I bought both of them because I couldn't decide.) I said no problem, I have ticket for another week also, we talk then. She said "yes we will talk". So that taking was without emojis etc. Every time we talk she was using ":) emojis too much. Is it unnecessary to care about? I said "ok we will talk ;)"

We didn't text yesterday first time since we met. Today is (now its about the night) also, so second day will finish if I don't write in 3 hours. So what do you suggest to me? Am I so analyzing her behaviors or talking style? I thought her interest level is decreased and tried to soft next but maybe there is no problem. Because until I say "if you don't haunt" everything was so good. That shouldn't be a reason for finish a flirt.