you can be so in love with someone and so convinced you're going to spend your life with them
and then suddenly you find out something about them that is a complete deal-breaker.
like that they're actually really close-minded and kind of racist and are incapable of talking to you like a human being when they're angry.
you absolutely cannot speak to me like that, it's unacceptable. i care about you tremendously but i can't be with you.