From what I can see in the logs, ST2 didn't tell you to go play in singleplayer, but to restart maps in singleplayer and then if you find a good one, use that seed, so you'd only have to restart the map once. That takes less revotes and won't inconvenience any other players, if there were any.
In my opinion you interpreted ST2's words incorrectly, which made you make the joke about not wanting to play anymore. After that, ST2 only suggests once that there's an exit button if you do indeed no longer wish to play. End of convo, unless it picked up quite a while later?
Besides that, you should understand that not all admins are native English speakers, that includes me by the way. Combined with the written word instead of the spoken word, things get misinterpreted easily, because there's no intonation and no facial expressions going with the written word.
I believe this is just a big misunderstanding and neither of you had any bad intentions in all of this. I hope this is the end of this, but if you feel like both ST2's and my explanation didn't resolve this issue, then please let it be known.