Crackup thread.
Ok so now you're a few days down so its not a spontaneous response. If you're going to be annoyed over it then its just as important to dare I say it, get closure and leave it behind.
Either drop it and make it a jig rod or tell him you're buying a new one and will he go halves.
It will mean that once he has paid he'll consider that the end of the matter and so should you. Sure is better than having sour grapes over it.
At the same time we have to realize that our non fishing non boating friends will not have the skill to help launch, retrieve, put bungs in or load rods, so you have to take that into consideration when you invite them around and ensure they don't get a chance to do any damage to themselves or your gear.