Yesterday I was leaving work, and my 2010 SS would not crank, we jumped off the battery, and still nothing. I have checked all fuses, with ignition and battery, the relay switch is clicking on and off when trying to crank. I have no clue, what it could be.

 

Welcome, Catrina,
Could be the Starter relay.
Find relay box, remove cover and swap starter relay with another from the box and compare results.
If bad relay, get another one from parts house and swap the original starter relay