What is the saddest part of being single?

来自Quora回答：

That nobody willingly chooses you.
You wake up, go about your day, watch people of all kinds and shapes. You pass unnoticed most of the time. You realize you're not the most beautiful, not the smartest, not even the funniest to hang around with.
You have parents and siblings. They love you unconditionally. They didn't get to choose you. They were blessed by a child and devoted all their love and care to him.
You have friends. You hang out, share secrets, and enjoy your time. You and your friends have different lives and meet different people everyday. Your friend realizes that it's easier to talk to that friend from work since they go through the same things. You do it too. You're still friends, you love each other and hang out often, but there's always space for other friends too. And it's pretty normal.
You go to bed at night. You feel this nagging void in your heart. You know you're not alone. You're surrounded by tons of loving people and actually blessed by their company. But you can't help the lingering heartache. Your heart is not settling down. He's in constant search, always longing for the warmth and security of a partner.
But as we all do, you hide it. You say you're happy being single and you don't need to deal with relationships' sh*t. Your friend comes to you crying about a silly fight she had with her boyfriend and you're like "Oh thank God I don't have to deal with that".
Then they make up and she's gleaming happily forgetting all about you, and you realize it:
It's nice to have someone who wakes up everyday knowing you're not the most beautiful, not the smartest, not the funniest to hang around with, yet he chooses you, and only you.
没有人愿意选择你。
当你醒来，度过美好的一天，看各种形式的人。大部分时间，你意识到自己不是最美丽的，不是最聪明的，甚至不是最有趣的。
你有父母和兄弟姐妹。他们无条件地爱你。他们没有选择你。他们被赐予了了一个孩子，并全力以赴去爱他。
你有朋友。你可以出去玩，分享秘密并享受自己的时间。你和你的朋友过着不同的生活，每天都遇到不同的人。你的朋友意识到，由于他们经历着相同的事情，因此在工作中与朋友交谈更加容易。你也这样做。你们仍然是朋友，彼此相知并且经常一起逛街，但是其他朋友也总是占有位置。这很正常。
你晚上睡觉，会感觉到自己内心的烦恼。你知道你并不孤单。到处都是爱你的人，并实际上得到他们的陪伴。但是你忍不住心痛。你的心没有安顿下来。你一直在寻找，总是渴望伴侣的温暖和安全。
但是就像我们所有人一样，你将其隐藏。你说自己很高兴保持单身，并且不需要处理恋爱关系。你的朋友来找你哭泣，因为她与男友发生了一场愚蠢的争吵，这时你心想：“噢，天哪，我不必处理”。
然后他们复合了，她高兴地闪闪发光，忘记了所有关于你的信息，你意识到了这一点：
“每天早上醒来的他知道，你不是最美丽，不是最聪明，也不是最有趣的人，但他选择了你，只有你，这真是太好了。”