Yesterday something happened during a D&D 5e session that created a between me, a player, and the three other players. I'd like to have your perspective on the matter, and a way forward, because the other three are not listening to anything I say.
We are five friends who decided to start a "campaign" in which we take turns DMing. The setting : we are small-time criminals in Waterdeep who have been recruited by an emerging criminal organization to do jobs here and there.
The party is a boxer "monk", a halberd sentinel feat "paladin", a ranger/fighter knife thrower, an Aasimar bard, and me, a Tiefling warlock. The characters have done a bunch of jobs together so far, and in the downtime they hang out together at the bar.
In yesterday's session, we are in a dungeon. My character opens a chest, finds 3 platinum pieces, and says to the others "Meh only 3 copper pieces". I roll a Deception check, get a low score, and upon seeing that the guys don't believe me, I say "Alright, it's 3 platinum pieces". The paladin shouts "He's been stealing from us from the beginning!", asks that I give him the pieces. I say "No, we'll split it in four", then all of a sudden the monk dashes toward me, grabs me in a headlock (we did a STR contest that he won), and the party steal gold from my purse.
They let me go, and only then the DM asks me how I react (I couldn't try to talk things out before). Now that they've attacked me and stole from me, I'm not gonna let them get away with it (why would I?) so I cast Burning Hands on them. We roll initiative, and the bard, who acts first, casts Suggestion from which I fail to save. He makes me say "I miss my mom" and drop all my cash on the floor. Then the paladin spits at me and they go away.
After that they just expected my character to tag along with them and forget that they attacked and robbed me of all my cash.
I tried to explain that it made no sense, that my character would want nothing to do with the party anymore, and that they ruined the party dynamic by overreacting over my character trying to hide 3pp from them, but then admitting he lied and wanting to split the loot.
They said it was a matter of "honour among thieves", and "loyalty to the guild". But over the previous sessions, the party hid three magic rings from the guildmaster that he told them to bring back to him. They also stole 100gp from a chest full of cash that was supposed to go to the guild. Not so much "guild loyalty."
As for the thieves' honour, the knife thrower hid a lot of loot from a dead mage (nobody asked what he got), and when he flashed a property deed he found on the mage, the party didn't ask where he got that. Also, the monk had opened a chest in front of everyone just before I did, looted all the cash in his pockets, and nobody said a word.
Now, all of a sudden, it's a huge deal that I do the same, and they attack me and rob me blind.
The Aasimar bard, in the tavern, while we're drinking and having fun, for no reason at all, uses the racial feature (can't remember the name) that makes him intimidate/frighten a creature -- on the paladin. The paladin just lets it go. But my character try to hide 3pp and they all lose their minds.
What is the issue in all that?
My character has been attacked, insulted and robbed blind. Why would he stick around with the party? They say the players turning on him was great roleplay, and that it's a golden opportunity for me to develop my character. But how can I have him tag along with the guys that ganged on him over a small lie that he admitted doing?
I'm saying that my character, in all logical sense, either leave the party, or try to kill them.
They say my character should just learn from his lesson and let it go.
But I don't see how he could let that go.
From my perspective, they went way over the top in dealing with the situation, and the party turned against a member, making him their enemy, which ruins the party dynamic.
The way ahead
So here I am, pissed at my friends that they left me with no choice but to play a character in a specific way that makes no sense to me, and they just tell me to "deal with it".
The character got jumped by his partners and he should just tell himself "Well, I got what I deserved."
How can I resolve this conflict so my character can rejoin the party peacefully?
How can I prevent this kind of party antagonism from happening again?