The Narrator Timeline & Summary

Our narrator is on top of a building that is about to explode. He has a gun in his mouth. Sit right back and you'll hear the tale of how he got to this point.
He tells us about attending support groups for people with cancer and brain parasites. He doesn't have either of these things; he just goes to the groups, and cries.
Problem: A woman named Marla Singer has shown up at the support groups. She doesn't have cancer either. Our narrator can't cry with her watching.
So our narrator makes a new friend: Tyler Durden. He and Tyler bond on a nude beach during one of our narrator's business trips.
Back home, our narrator discovers that his apartment has kind of exploded. Yikes. He moves in with Tyler, and together, they start something called fight club.
As fight club mania sweeps the country, our narrator, Tyler, and Marla get swept up in a bizarre love triangle.
Eventually Tyler forms Project Mayhem, recruiting fight club members in a mission to topple our capitalist society.
Everything escalates out of control, with people dying and buildings exploding, until Marla finally tells our narrator that he is Tyler Durden. Whazza-wha?
Our narrator scrambles around trying to undo all the damage he did when he was Tyler.
It doesn't really work. After shooting himself in the face (he survives!) our narrator rids himself of his Tyler hallucinations, but Project Mayhem is still out there, subverting society.