Throughout the sojourn of Jesus Christ on earth, he was not found with any sin -not even one.He was blameless which makes him the most unique creature that ever existed.
The man 'Jesus Christ' is simply indescribable.His love for human race made him sacrifice himself for mankind. John 15:13 states that
"Greater love hath no man than this, that a man lay down his life for his friends."
Jesus Christ died so that we might live. He voluntarily laid down his life for us.
Often times, as humans we feel very remorseful when we see an individual being punished for an offence he/she did not commit.
Imagine a man who the bible never recorded any sin for, suffering for the sins of the entire human race.Jesus Christ sacrificed his life for generations living and yet unborn.
Each time a person sins, or a believer backslides, Jesus Christ would of course be unhappy with the regression. We are continuously expected to practice righteous living. This would make our saviour happy and his presence would always be with us.