Would you defend yourself or let it slide?

I am working in a particular place for another few weeks. My boss pretty clearly does not like or respect me. She thinks I’m a slacker because I come in very late in the day—but I am also there nearly every day on the weekends, and sometimes as late as midnight. She seems very reluctant to give me credit for ideas I come up with or projects that I pull off correctly, and I’m not entirely sure why.

I will have to work with her in some capacity for a very long time. Is it worth it to try to defend myself to her? Should I continue to be hard-working and hope that eventually my accomplishments speak for themselves? Or should I just avoid her as much as possible?