Hemi STFU.
1: You f**cked him over on this deal just as much as he has "f**cked" you. You interacted as a buyer and told the seller you would purchase his product and the seller was even kind enough to allow payments from you and then you straight up failed and didn't buy it.
2: He is paying you back.....he has even contacted you and told he is paying you back. He was polite enough to take payments from you........why the hell can't you do the same?......because you lost your job?......that's his fault how?
3: If you are so god damn tight on money, why the hell are you even buying an engine. You are supposedly a parent? If you are dime and nickeling everything and facing unemployment, you need to seek help or turn your kid over to a responsible home where the parent's will actually provide for the child. You need to get your priorities straight.
4: Instead of starting a thread or discussion that goes "IDHGVIPOSHDHVIASDOIUVHAUSIFH!!!!!!!!!!!!", actually be calm, assertive, apologize to the seller for having the deal fall though, and politely ask for the money to be returned and try to understand some people can't turn around and do things instantly, just like you couldn't buy his engine instantly.
this man is most likely the smartest man i have ever met
have some green