Beauty is in the eye of the Beholder

...as you objectively try to benchmark yourself against the guy she has chosen over you.

无论是语言,长象,智商,文化背景,学术水平,你都不次于他。

"Then why?!", as your head demanded to make sense of it all. "Snobbish prick at times maybe?" offered the heart.

She then gladly delivered the K.O. punch, "Because he makes me laugh. He may not be as accomplished as you are, but he is funny. I feel happy when he is around. On the contrary, I always felt stressed when I was with you. It's not you; it's me."

She made it sound a little like the "Tufts Syndrome", of which you do have a real life connection to.

Related: quitacet's comments.