Once inseparable friends who lived by the "all for one, one for all" motto, memories, experiences and years down the line, point where a one-time musketeer decides his life could do with some detoxification and decides to let go of one of the three.
It’s a very awkward place to be. That point between friends, when friendships, once sweet, goes sour, one friend needs to detox and realises some 'friends' have to go. Struggling to avoid taking a biased stand and be fair to both parties when one bashes the other to your hearing. It’s a difficult position, Porthos most of the time makes a case against Athos and takes offense when Aramis won’t take his side.