I think that any further dialogue should be taken to Pm, and that The actual fight should begin now. You have actually given me percect reason to attack now. However, due to turn cycle it is Leeroy's turn. So i guess one final exchange would be called for, or for him to attack now.
The character Jynxs is actually scuicidal, and would be gratefull for any attempt on his life, seeing as he cannot kill himself. (Its a complex part of his back story. Basically he is programmed not to take his own life, or LET others take it.) It says plainly and simply in his history that he roams around looking for someone who can cut his life short. The threat given, would process in his mind as: "They will attempt this. If I resist, either me and Nyagna will have an interesting, but rather boney meal, or finally my time here will be up, and I can grasp death, after long wait." Its a win win for Jynxs, reguardless of how it is done.