Eye Candy

Something or someone that is attractive to look at but not necessarily substantial

Out of the Blue

Unexpectedly, without warning

Mind-Blowing

Extremely impressive, surprising, or exciting

Steal Someone's Heart

To cause someone to fall in love with you

Cry over Spilt Milk

To be upset about something that has already happened and cannot be changed

Don't Judge a Book by Its Cover

Do not judge something by its appearance alone