Opened girl at the gym, she's consistently flaky on me, and despite having some moderate one-itis for her I've decided it's time to move on. Seeing as how I'll def bump into her again, what's the best way to act around her? Esp to preserve future chances should they ever arise

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1) blow off when I see her

2) be friendly, wave, etc

3) sometimes blow her off, sometimes wave, etc