As DM I think that I would be glad to see the back of both you and your character, sorry.
As DM, you worked with me to help create this background and gave me the order to kill Anea if possible. Just saying.
If you are fairly new to the group, playing the lone wolf is just plain risky and crap like what happened can happen.
The group is fairly new. I have been playing with 1 of the characters for almost a year (the Warlock, who basically stayed out of the whole mess just shaking his head). 2 of the players were joining the group that night (the psion and the flask-throwing factotum). The game itself is only a handful of sessions old, and I previously died in no small part to another party fiasco (bleeding down from -1 to -10 while one PC tried to kite a wounded guard for 9 rounds and the other was chased around by 2 more wounded guards, and went for a UMD wand activation on -9 and failed).
Everygame that I have been involved in, there is an unwritten rule that you never kill a fellow PC without reason or justification. If your guy said "I'll explain after the battle", then in my book that should have been enough to buy your character a moments reprieve of explanation after the battle (which if unsuitable would then have resulted more than likely in summary execution for your character).
This was an assumption I've been gaming with for years, ever since some very juvenile sessions in 2e. As I said, I had been planning on explaining myself after the battle. We had also been gaming for over 6 hours, and I had worked 9 before that so I was tired and a bit weary. The new players (which I didn't know about it until a few days before the game) also confused things a little, as I was planning on revealing my association with my companions soon.
Additionally, keeping secrets from your fellow players hints that you don't trust them to role-play their characters as ignorant of your character's motivations.
I have yet to meet someone who can flawlessly do so. Trust is a central idea to gaming in general, and part of the problem. In hindsight, I probably should have made my intention clear before the battle, even if I wasn't willing to explain it (yet). However, I don't think I was wrong in assuming that I would have time to explain afterwards. Further, it was pure metagaming of the combat rogue, who knew how many hp I had left to attack a raging ally. Had I been at 10 hp higher, his attack would not have likely killed me, and I would have surrendered peacefully. There simply was no time.
Secondly, you carried it too far. Yelling "I'll explain later" in combat doesn't cut it. More explanation was called for, and your character didn't provide it.
I agree, but is a coup-de-gras the correct response? Presumably they want to know the reasons for my actions - killing me hardly seems the course to go for answers.
Clearly someone was annoyed at the unexpected behavior and saw it was coming from you, not a mind-affecting spell. That shouldn't've happened.
Someone mentioned I could be under a compulsion, geas, or some other mind-affecting spell, but it didn't stop the coup-de-gras.
Fourth and finally, it wasn't a good idea to abandon the game group. You created a dorked up situation, it went south, and you lost a character. Ooops. Live and learn. You say "I don't want an apology or anything like that" but I think it's you that owes the group one. You tried to play lone wolf in a social game and when it didn't go your way, you took your marbles home. Meh. It's a game. Work WITH the other players next time you come up with a neat idea and you'll discover that way, way cooler things will happen.
This is probably my own fault. Most of my gaming experience comes from friends that I knew before we gamed together - we were friends first, PCs second. Thus, in game, we didn't knowingly screw someone over (see above). Working under that assumption, I was trying to create a dramatic and memorable scene. I succeeded (I think), but not in the way I intended.
I am not the kind of person that likes everyone to memorize all my capabilities. Yes, we're friends and yes you probably will know them after a time. But at the first session, I don't appreciate someone asking to see my character sheet. For me, it just doesn't jive. After a few sessions you'll be well aware of most of my potential, but have the tact not to expect that as a matter of course from the outset.
I think you've missed out the most important bit - why you're leaving the group.
I am trying to cool off and have told the DM that I may return later. For one thing, there are a number of out-of-game things that I have been neglecting in order to play every week. I work 40 hours a week, just got a promotion, and I'm taking 12 credits at a school that is an hour from where I live. Time is short and my stress level has been high. I don't need any extra pressures or stress from my leisure time, which I think rejoining the group immediately would definitely cause. Raising from the dead, despite being offered by the DM, is clearly out of the question in this case (as most of the PCs have already said, regardless of my "explaining" their characters would not want to adventure with him anymore).
So, let's see if this sounds reasonable. Your patron has been hinting that Anea shouldn't necessarily be considered an enemy. And the party agrees (including you, apparently) that you'll all let her live and try to make an ally of her. Meanwhile, you show yourself to be a bloodthirsty "kill-em-all" type. Then you disregard the party agreement and charge in and slaughter someone that they're trying to save.
We all agreed we would clean up the mess, whichever side won we would take as allies. Somewhere along the way it turned into helping the cleric because we didn't want goblins as allies, but we didn't break out a contract and sign it. We had 5 players and tangents and bathroom breaks going. I freely admit that I should have revealed my intentions before the battle, however I don't think the correct response to slaughtering an NPC is to kill your ally, especially if there is a forthcoming explanation.
I think both y'all's reactions are a little strong, but as far as the party is concerned it certainly looks like you set out to screw them. Depending on the character I was playing, I might have been interested in hearing an explanation but in most groups I've been in, something like what happened there would basically be you signing your own death warrant.
Today's Moral: Secret cross-purpose motives within the party never work out unless the players, not nessesarily the PC's, know about it as well.
I didn't set out 'to screw them'. As I said, I was trying to create an interesting character. The raptorans in the campaign are allied with the church, though for political not religious reasons. Having someone who can get information from the church can be highly beneficial to an anti-church organization, or vice-versa. Nor was I trying to "steal the limelight".
Some last food for thought:
Had I already revealed everything to the players, but nothing to their characters, do you think this would have played out the same way?