谁给我解释下christina aguilera 的《f.u.s.s.》这首歌的意思？

F.U.S.S.

You know who you are
你知道我在唱你

This is for you
这是为你而作

Hmmm, yeah, ooh yeah, ohh

I thought I knew who you were
我曾想 你是那样的

I see now you were a lesson to learn
我觉得你现在需要好好地上一课

And all I am to you now is a bridge that's been burned
我和你之间已无话可说

Now I was the first to believe
现在我才明白我曾相信

I made you part of my musical dream
我把你当成铸就我音乐梦想的一部分

And your thanks to me, came without an apology, yeah
你对我的感谢 却不带一个道歉地离开

We wrote Loving Me 4 Me, don't Walk Away
我们一起谱写为我爱我 ，不要离开

Can't Hold Us Down, all part of our history
没人能让我们倒下，成就了我们的历史

Don't forget Infatuation, I'm a Fighter
请不要忘记迷恋，我是一个斗士

Feeling Underappreciated
感觉毫不感激

Yeah, this song is for you to remind you
是的，这首歌就是为了提醒你

That I moved on, sang my songs,
我还在前进，唱着我的歌

I've got no regrets
毫不悔恨

Mmhmm, ohh

Hope it all was worth it, uh
希望这些都值得

Looks like I didn't need you
就算不需要你

Still got the album out
我同样都能做出好的专辑

Ha