Tiffie, it sounds to me like he wants to {Leech} the fight. Notice how he says "for me" not "help me" or "fight with me." He also mentions payment which is a sure fire sign he wants to {Leech}.
At least that is how it sounds to me.
I could be wrong.
I would offer help but I am still trying to get Weapons, Mama Mia Items, Pacts and Whispers. I have "The Moonlit Path" initiated, but have some time before I am able to go, and even then like all BC fights, people win and all of a sudden that is the infallible set-up to win. At least I have a fully leveled NIN sub, so that should help my chances of going in as melee.