But if the person who won your heart does not love you, then you are sure to have a broken heart.

VOA: special.2010.07.18

Let's say, you are in a job that you love and your boss, at one point, starts to do so many things for you.

假设你现在在从事一份自己喜爱的工作，你的老板一度开始为你做许多事情。

That's why 课堂 - SpeakingMax英语口语达人

The one who didn't really love you that much but then starts to show you that they love you, that person is a powerful influence on your behavior.

爱你不深的人,开始对你示爱，这样的人会强烈影响你的行为。

耶鲁公开课 - 心理学导论课程节选

And these aren't necessarily so incompatible but the evolutionary perspective I think would argue that you can feel that kind of love for more than one person or at least it would facilitate the passing on of your genetic material to a larger array of the next generation.

两种观点不太相容,但是持进化论观点的人认为,你可以和两个以上的人拥有完美式的爱情,至少会促进,你的基因传给更多下一代的人。

耶鲁公开课 - 心理学导论课程节选