Third Day Home

I'm really unsure what to do. This morning I woke up at 8 just so I could hang out with her early morning, because she was apparently making dinner for her other guy friend tonight. So she woke up at 10, texted me and told me shes going to the gym, got back at 12, was ready at around 2 but said she felt sick. So I felt bad and told her not to worry about me.
After waking up from her nap she messaged me on Facebook and told me shes sorry and I found out that she is going to still be hanging out with her other friends tonight. I event old her that this morning might be my last chance to see her before I leave, but she said she was too sick. But not too sick to hang out with him. She says she feels better now, but I dont know if I really believe it.
She wants me to see her tomorrow, and I want to see her, but I feel like its a bad idea. I want to teach her a lesson. I dont know what to do. I want to believe that she does feel better, but I feel like its too much of a coincidence. I told her that I'm not sure if I want to see her and she is telling me she is really sorry and that she does care and that she won't act like that anymore. Hmm...