Guys, could you tell me what is happening with this transaction?

https://blockchain.info/tx/54b06735a6e226dc6bde907ebf328413d529a5d30a6700a118579db4e9cf2914


I sent 0.001 to this address: 13a4zGV35LUJUEfRbBfSNcSUo4RWtQv8Cn

You can see that the input is 0.002, even though I sent 0.001 bitcoin.

Could anyone please explain to me why I see 3 addresses in the output? 

I sent only 0.001 btc and already received the exchanged amount in fiat. I don't understand why the output is showing 3 addresses?

Is there something wrong with this transaction? Or did I actually accidentally input 0.002 instead of 0.001 and didn't notice it??? Honestly, I don't remember now...  I actually sent this amount to an exchange. If I accidentally sent the wrong amount can I actually demand they pay me the I amount I sent. I already received the payment for 0.001 btc in fiat. My balance is showing funny amounts as well I don't understand it.

here's a screenshot of my balance https://i.imgur.com/b34NkCU.png

I am a newbies, yes. This is the first time I have sent a payment to someone.


Please help to clarify this situation... Was this my mistake??? Did I actually input 0.002??? 

Thank you in advance!