Did Stargirl always do the right thing?

In my opinion, the only thing Stargirl does wrong is to attempt to change for Leo. She stops being herself, and tries to be what he wants her to be. She may do everyhting right for everyone else, but she cheats herself.

"She was not truly a cheerleader, but Stargirl dressed like one."

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"Did you see it?"

I nodded. I kept walking.

"Well?" She was hopping beside me, punching my shoulder. "Wha'd you think?"

What could I say? I didn't want to hurt her feelings. I just shrugged (24.17-14).