If one is a true believer and follower of Chirst then they will have eternal like in the His Kingdom upon His return.

Jesus was a compassionate Soul who was very close to Mary & Lazarus. I believe he could feel the pain, suffering, & grief of those around him. God knows when we are hurting. I think Jesus felt the heartache of those. At the same time there was a lack of faith with Mary whom Jesus was close to. Martha believed Lazarus would rise again one day but i dont think she believed Jesus would raise him right then. So I also think Jesus was upset by how even those close to him could still be so lacking in faith.