Hey there. This is how Bitcoin works! To put it simply, an unspent output means that that balance of bitcoin is still associated as stored at that address. Of the coins you sent to address 1Gop134Nc6kx23EfqaunjTF1YBapyzHDQ6, there is still an unspent balance of 0.04420868 BTC.

In other words, that amount is still "stored" at that address as an input and can be spent further on.

The transaction you showed here was confirmed, so you've successfully completed your spend! If you're still confused, you have to explain further details behind your transaction. Otherwise, I'm pretty sure you have nothing to worry about.

And no, you can't reverse the tx (not practically now anyway).