question re: companion passes

[amamba]

So my H has companion passes that he got for S+. If he buys a BC ticket on acela, can I use the companion pass for that? (ie, we both travel in BC on acela)

To make things crazy - can he then use an upgrade coupon on his fare to FC and can I then pay the accomodation charge to upgrade to FC?

If that isn't allowed, can we both pay the accommodation charge to upgrade to FC?

 

[Acela150]

IINM you'll only be able to use the Companion and pay the upcharge. Which would still be a deal IMO.