Hey guys!

Wondering what i should I do, we planned to go out tonight a couple of days ago before and now she just called me saying that she had an event to go to for school and that she had to go to it or else she can lose marks. She then proceeded to ask me if i wanted to go Friday as she wouldn't finish her event until 8 today. Making her not think she has power I said " I don't know I gotta check my schedule to see if I'm available or not" so it wouldn't seem like I was desperate to hang out with her. She asked me to hangout after 8 but I said I didn't want to because there was no time to hangout.

She flakes hours before going out. Should I give her another chance or just next?