I only had a oneitis in HS. She made me feel like absolute shit about myself, as in her rejection / friend-zone shit. It took me years to get over it. The aftermath was ugly, I was very immature about it. Thankfully nowadays, Idgaf about foids nor give them the pleasure of me getting attached / obsessive. Once you realize they're all inherently evil, you start treating them differently compared to your fellow man. I hold the door for my fellow-man, but not women. I tip male bartenders / waiters, not females. Anything I can do to make foid's lives harder, I'll do it.