What are some of the subtle signs that tell you someone you're interested in will break your heart?

What are some of the subtle signs that tell you someone you're interested in will break your heart? I'm not talking about obvious red flags, but someone who has nothing in her past that makes her an obvious no-no.

[Answered on Quora.com by Dushka Zapata]

Let me make this both easy and infallible.

Date her. Don’t date her. Either way I guarantee your heart is never safe.

This girl with the impeccable past and intriguing disposition - or the girl that comes after, maybe - will hurt you.

Then, you will put into place a million safeguards and precautions and dive right into marrying the wrong person.

Or, worse. You will marry the perfect wide-eyed girl and the bad guy will turn out to be you.

Someone you love is going to disappoint you, and if you are lucky it will be in a big way.

This is because being disappointed in a thousand nameless, secret ways can be even more disheartening.

Back to who will disappoint you. I can even predict who.

Everyone. Everyone you love.

No one can live up to the expectations we refuse to see we have.

If you do nothing and retreat and remain circumscribed to your living room and forever stay away from this girl you wish you could decode, your heart will break anyway.

The worst kind of heart hardening, or heart demolishing, or total disintegration, is to be so cautious that you miss everything that is beautiful.

Please, give yourself over to this girl who interests you. Risk everything for her. Lay with her still in the dark, taking in her smell and caress her hair and whisper these words to yourself: You are not safe. You are not safe. Not ever.

Now please. Go live your life. Don’t miss the very best part of it just because you are afraid.