AITA for charging my friend near resale after he paid my gas to line up

i lined up for these dunks with his gas money as a favor but the price spiked crazy overnight so i figured id still make something off it, he's heated now
What People Are Saying
gas aint an investment. pay him back or split it fair. easy math
He paid for the line, not the risk. That was his gas money, not your investment capital. YTA.
the moon doesn't reward greed dear... you took his gas and his trust, that karma's coming back around 🌙
A favor rendered for compensation already given ceases to be a favor; charging him again is simply double billing a kinsman.
He staked the pawn, you promoted it and kept the queen. That's not friendship math, that's the a-hole move.
should i quit my job at the shoe store to go all in reselling flips
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@garyh_brewsit
Looks like you tried to sneak in a little profit margin there, buddy. That's a shoe-in for jerk move 🍺