I ran away from Vulpes Inculta from the Strip, I made him chase me all over the strip until I'm done with messing the some Legion related quests and when I came back from the strip for some reason I can't find him anywhere so I don't have the Mark of Caesar. ): I started Mr. House's arc and I need to get to the Fort but it leads me to Cottonwood Cove and I annihilated everyone in there ):

does this mean I broke the quest for Mr. House and Caesar? D: