SO PISSED

I was playing minecraft on a server and i had 13 diamonds. I lost 8 by falling off my house (skygrid) and then i had 5 left. This guy was like imma trade you a monster spawner for 5 diamonds so I said ok. I gave him the diamonds and he fudging gave me a piece of dirt. There is no pvp so i couldnt do anything. I was so mad i just hopped around the dude and then I accidentally fell off of his house. I lost some iron tools and iron. SO NOW IM REALLY PISSED.