My friend cancelled on our weekend to do homework? Do I have the right to be pissed off at her?

She texted me just now that she has to study for a test which she needs to take this weekend. Her test is due Tuesday. She can study at my house and she can do her test when she gets home Sunday or Monday after work. She is in college. We had fun things planned like going to the mall all day Saturday and Sunday bowling and dinner. Bitch cancelled to do homework. I understand she has to study but still. I know she has another class too but she could have done some during the week then she won’t have a lot to work on. That’s on her. I texted her she can still have fun and take breaks.

she said we can do it next time since we have finals next week.

My friend cancelled on our weekend to do homework? Do I have the right to be pissed off at her?
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