没错，我们相处了那么久，但当我俩在一起时，谁也没法再假装自己很快乐了。

Sure, we have a long history, but we simply can't go on pretending that we're still happy together.

youdao

伤口再深，时间也会将其抚平；快乐再淡，却可以愈久愈迷人。

Wound again deep, time will also be healed; happy and then light, but it can be more charming.

youdao

我们一起走过这么久爱的历程，有心心相印的幸福和快乐，有相互体贴关照，也有过误会和争吵。

We pass together the course that liked so for a long time, have the happiness of having mutual affinity and are happy, have think for care mutually, have also had misunderstanding and quarrel.

youdao

And similarly, pleasures can be longer lasting, or more intense.

类似地，快乐也可以,延续得更久或更加强烈。

耶鲁公开课 - 死亡课程节选