Have you ever loved someone who didn't love you back? What emotions do you feel?

Then I said, Ah, she is worn out with adulteries, but they carry on their sexual acts with her.

~Ezekiel 23:43

Yes, I have loved someone that didn't love me back.  Maybe I still love them, I just can't bring myself to say it until they do.  That's how I feel I can protect myself from being hurt because all I feel is angry and sad altogether when I can't tell that someone doesn't care for me the same way I do.