Originally Posted by
SFO777
I would hope not.
F is for F pax and not friends and family from J.
The crew is not likely to permit it and some F pax will complain if the crew doesn't kick them out on their own.
Here's an idea... why not visit them in J instead?
As an aside... 1 F seat and you took it for yourself and not your wife? LOL. Apparently, you've yet to learn the old adage "happy wife, happy life".
Not just "hope not", but almost definitely no. If OP is the only passenger in F, there may be a very, very slim chance (still almost 0). CX does not allow J passengers visiting F, let alone dining in F.