Have you ever been obsessed with someone?

I'm not talking about criminal or pathological obsession of course, but have you ever liked someone so much without him/her showing real signs of commitment or interpreted in a romantic way behaviours of an emotionally unavailable person that weren't meant to be romantic? Have you done something with/for this person that you regret? How did you manage your feelings? Did you overcome them and eventually how did it end?

Have you ever been obsessed with someone?
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