So I'm on PS3, and I just did For Auld Lang Syne for the first (and probably last time), and at the end Arcade said he needed to go do something, then gave me all of the junk I had piled onto him and left. This left me overencumbered.

So I slowly make my way out of the bunker, about 100 pounds overencumbered even after repairing as much crap as possible. When I get to the exit, I see Arcy standing at the door in his shiny power armor. Then he attacks me.

I still have it paused because I really don't want to kill him. Anyone know why? I have a good standing with the followers, a decent (sneering punk) reputation with the NCR, and I told the remnants to help the NCR. I don't know why he'd attack me except as a result of a glitch.

Yeah, he's not supposed to attack you. Don't know why that's happening.

I suggest reloading from a previous save to see if that solves the problem.