BC - I'm afraid that you are in the wrong in this case, purely by posting the above. Whatever went between the two of you in the past should have stayed there. By posting the copy of your apology and his response, you have rekindled the disagreements that had been put to bed. The last sentence in Mayhem's response was:
"I'm not changing what I do. But two members, acting like douche-bags at each other, does have an effect on everyone else, and they don't need it. I'll follow the rules if you do."
Regardless of what else was in the response, this was the final word and should have been the end of it.