You can only hurt the one you love because you are expecting positive feedback from the one you love.

之所以这样说，是因为,你总期待着他们给你积极地回应。

耶鲁公开课 - 心理学导论课程节选

So you can only hurt the one you can love but the one who always loves you sometimes has trouble showing you that they love you.

所以你只会被所爱的人伤害,但是一直爱你的人,有时不善于表达他们对你的爱意。

耶鲁公开课 - 心理学导论课程节选

Oh. You can only hurt the one you love. Right?

你只会被所爱的人伤害，对吧？

耶鲁公开课 - 心理学导论课程节选