Do adults still get crushes after high school, or am I the problem?

This may sound like a stupid question, but I'm genuinely wondering if I'm the problem.

I haven't fallen in love with anyone or had a crush on anyone since high school. I'm nice to men who approach me, I'm not hostile, but I never develop feelings for anyone.

I think there are two possible realities: 1) I'm the problem. 2) I overestimate how emotional other people are and they develop feelings/crushes as rarely as I do.

However, what I see is a world full of people who date, cheat, date, cheat... which leads me to think they feel attraction and feelings way more often than I do.

Do adults still get crushes after high school, or am I the problem?
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