Why sending bitcoin and one addresss shows (Unspend) and one address shows (Spent)?
The second address your transaction sent to is called a ‘change address’. If you search that term on this site you can learn about what a change address is. 

Here is a breakdown of the different status’ blockchain.info reports on their block explorer website:


if it says ‘unconfirmed’, that means transaction is not yet confirmed (not yet included in a block)
if it says ‘unspent’, that means the transaction went through, and the funds are still sitting in that address
If it says ‘spent’, that means the transaction went through, and the recipient has already moved the funds to another new address