Don't you have his email and phone number? Use one of those methods to remind him.
I have his cell number and his email, but I'm thinking I'd like to leave everything inside paypal so they see everything. He is much more hostile while texting me. He still isn't able to deny anything that I have been saying with any proof at all. He has just been saying stuff along the lines of "what's the point of a deposit if it's fully refundable?" so I reply with "the deposit was to show I was serious about making a 4 hour drive to see the vehicle, and that the drive would not be to waste incase it sold before I got there. A deposit in no means can be nonrefundable unless it is stated and agreed upon prior to accepting the deposit"
He then replied with "I expect a zero refund because I never agreed to that". This is the unfortunate part, as this was in person, I have no text record of it, but I can assure you he said it.
So i replied. Last night around 10 saying "no where was a non refundable deposit EVER mentioned across any format of communication. The very first time you ever mentioned it being nonrefundable was (then I gave the date and time of the message). This was prior to both accepting the deposit and agreeing on your property on Saturday that you would send it back to me. Your vehicle is still on your property, in your possession, IF we decided to purchase it. Just like you stated above."
He hasn't replied yet. I am able to elevate this to a claim later tonight. The guy is giving no evidence at all.