What to do if a girl rejects you, but says she's getting over a break-up?

I've liked this girl and wanted to go to a semi dance with her but I found out she is already taking someone. We've talked a good amount of times and are good friends. When she took him I didn't think she was that into him and also a friend also said she wasn't into him, and never thought she would date him but could have and was single the whole time after the semi dance. So I asked ger out 2 weeks after the dance and said ummm well no I'm getting over a breakup and totally understood but disappointed and was on the last day of school. I'm probably not going to see her over the summer but probably would have if I was dating. What happened, did she say that just because she didn't want to be mean or is really getting over a relationship? She said it nicely and not rude and thought well maybe just let her get over it and maybe hang out over the summer? I still like her what should I do now?