The thing is the moment you clicked accept trade a new 'deal' was made which IMO makes it no longer a scam because the only thing u asked in return was an invite to the gang in exchange for the items.
Lastly the thing your 'considering' that you said in-game. You need to seriously chill this is just a game. A game you may or may have not spent a lot of time on but a game none the less. If your talking about what i think you are. Chill. Like i said to you, I've had personal situations where it has happened to me. Don't joke about shit like that.
If u need someone to talk to I'm here but IMO its not a scam.