讲解
Today's key words are ex-girlfriend and ex-boyfriend!
ex-girlfriend and ex-boyfriend
前女友 前男友

Ex-girlfriend is the girl you dated, but no longer has romantic relationship with.

Here is an example:

My ex-boyfriend is a nice guy, but we just don't have that chemistry.
我的前男友是个好人，只是我们两个缺少点火花。

今天我们就来讲讲前任，如果你的前任要结婚了，要不要去参加Ta的婚礼呢？

Should you go to your ex's wedding? It is debatable, so let's talk!

For those who will go to their ex's wedding:
Why not?
If your ex-boyfriend or girlfriend invites you to his or her wedding, you definitely should say yes!
But there are different tips.

If you still see him as a friend, just go to the wedding as a friend.
如果你俩还是朋友的话，去参加朋友的婚礼很正常啊，送去你的祝福，还能在婚礼上跟好久不见的其他朋友聊聊天。

But if you just hate him, you should go to the wedding as well. Put on your most sexy beautiful outfit, bring you brightest smile with you.

不要怕别人所谓的闲言碎语，Be yourself。前任的婚礼是证明自己没有他过的也很好的一个非常好的机会！

But for those who don't want to attend ex's wedding.

If somebody tells you that you can still be friend with your ex. He is lying!
No one can be friend with their ex, no one!
跟前任还是好朋友？别开玩笑了！

You were in love with her or him, but both of you have to move on.
分手即为陌路人，可能过了几年偶尔还会见到，到时候打个招呼，问个好就足够了。不必纠缠。

So there is no reason to go to the wedding if you two are no longer friend. Right?

And think about it, if you are there in the wedding ceremony, your mutual friends will definitely ask you about your feelings. It is annoying!