Well i just got Veronica. Voiced by Felica Day? Of course i want her following me around. Get lost Boone
I think i'm close to going to the strip... can you return and do side quests after you do? What about after the end of the main quest (i have most of the DLCs)?
Get the unlimited companions mod and use them both
Yes, the strip is just another area in the game, if that is what you mean. You can come and go as you please