Have you ever been so sure of something but were wrong?

I mean this in particular to love I like this girl actually I’m pretty sure I’m just in love with her and man everything in my fiber is telling me that this is meant to be and I feel like it will happen it’s so weird I’ve never felt this way before like I’ve been in love before where I really wanted it to happen but it never did just cause you like someone even love them doesn’t mean they’ll love you back I don't know I could just be delusional but this feels different. have you ever experienced something like this before if so what did it lead too. ?
Have you ever been so sure of something but were wrong?
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