To dream that you commit suicide, indicates that you are feeling guilt over something you have done in your waking life. Perhaps you have done something and are afraid that you will be exposed. You need to start approaching problems from a different angle. Alternatively, it may signify an end to some aspect of your life and the beginning of something new.

To see someone commit suicide in you dream, represents your repressed anger toward this person.

To dream that your lover commits suicide, denotes your disappointment by the faithlessness of your lover.