Are we responsible for the emotions of others? If so, are others responsible for Swartz's depression? Then how is it selfish for him to act out the emotions put

Are we responsible for the emotions of others? If so, are others responsible for Swartz's depression? Then how is it selfish for him to act out the emotions put onto him by others? I don't buy the idea that a suicide victim "forces" people to feel guilt. That implies we are not responsible for our own emotions and that we expect others to live for our own personal welfare. Believing someone else is obligated to make us happy, despite his own incredible pain, is truly selfish.