Is she going to call back?

Ok. So, last Friday I met this really nice girl dancing salsa. She seemed really into me. She is an attorney, 28, and single. I am unemployed, 37, and haven't finished school. Am I lucky, or what? Well, to make a long story short, I am one of the nicest guys you'll ever meet and really romantic. I do consider myself attractive, tall, and really know how to dance. So, that helped. I asked her for her number that night and she agrees. We also agree to go out on a first date the following Sunday. I go all out and take her to an expensive dinner and probably the nicest restaurant in San Diego. Even before the night is out, she hints at a second date. We agree. That night, after dinner, I am walking her to her car and only get a hug good night. I ask her about a second date next weekend, she says ok, but then says her friends are going out of town and she might go with them. She says she will let me know, but if we make plans she may ask to change them if she decides to go. She loved the dinner and told me so. I text her on the way home how nice it was to see her smile again. No reply. I call her the next morning at work to only tell her to have a nice day...I figured it would be a nice gesture. She cut me off and said she had a really nice time, but she was really busy. Mind you, I was not going to make conversation, only wish her a nice day. So, she hangs up and it is now Tuesday. Have not heard from her. Also, I decided not to call her back, since the ball is now in her court. Considering my current situation, I may consider myself lucky to have met her, but it is only because I am in a career changing stage which I wil not go into, but she understood. Am I doing something wrong? I thought women liked nice guys who treat them nice, call back after a first date, and are trying to make a life out of themselves to have a family one day. I went all out and feel cheated. Any advice to make me feel better would be good. I have done so much to find someone nice and even sacrificied school and work for it in the past. Thanks.