So I'll try to keep this short, but I'm a big detail person so i'm sorry haha

There's a local guy I've done business with about 3-4 times now, usually everything has been flawless. However I posted a pair of snakes up for sale in mid January, which he contacted me almost immediately about them asking what I would sell them to him for. Being I've done business with him before, I cut him a deal and offered him the snakes for half the price I bought them for about six months earlier. He first inquired about payments, which the amount was not a lot to begin with, but I decided to go with it being I've sold to him before. A month passes and I still haven't received any payment from him, I ask him if he is still interested and he says he is. About another two weeks pass and I put another couple snakes up for sale and he asks me how much I want for them. I ask him what about the other snakes and he says he still wants them but also wants the other snakes I had up, which were about double the price of the ones he says he would be buying. Maybe a couple days later he asks about picking up just the female, I ask him if he did not want the male anymore and he says he still does. So I tell him I'd rather sell the male to him first to keep the incentive to buy the female, not to get stiffed with after he has the female "I don't really need the male." So he told me he'd let me know by the weekend. About another week passes by and he asks about picking up the female again. I have not yet responded to him as I kind of feel he's just tired kicking now, as I still have not received any money for them.

So ultimate question is, what would you do if you were in my situation?