Separate boarding passes... same flight numbers. One says BOS-ORD, one ORD-SAN.
I was #1 on the Upgrade wait list in BOS, and three of us cleared, but I was the only one staying on the flight to SAN.

No, the VIP was up in the first row (3E), I was in the last (6F).

After the entire main cabin was seated a woman came on with a boarding pass... I was CERTAIN she was going to tell me I had been moved back to F... NOPE. The lady across from me in 14D was.