for me, it happened even before i realize, so it’s… pretty indefinite. sometimes it took me just a few seconds, some other times it took me months, even later. it’s only sure when i find myself constantly think of them, want to check up on them, and be curious about them. something that helps me come to a realization of that is mostly… the conversation we exchange. through conversation, i could always see how vast and diverse one’s mind is, i could even see their perspective of me, and i could see how they care for themselves. i think that’s what makes me sure that i’m in love.