It seems that any time I was interested in someone, they never were until after I was over them. Why is this?

Has anyone else experienced this? It seems like any time I was interested in someone in the past, they had no interest at that time, but suddenly were interested later on, always after I had already moved on and no longer had any interest. Why is this?

It seems that any time I was interested in someone, they never were until after I was over them. Why is this?
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