Forum:ED-E lost forever

So yeah, during the main story quest when venturing into the bunker under the fort, I panicked because my radiation level was really high, and rushed through the mission not paying attention to ED-E who came into the bunker with me. Apparently he got downed by a Protectron or something, but I didn't realize it until I had already left. Now he is stuck in there, with no way to get back in, I cannot terminate his companionship, so any advice? Also where exactly does Boone go when nearing Cottonwood Cove he says he will kill any Caesar's legion guys so I said to end the companionship. I cannot find him now. Any advice?