i think you played it fine. six person you have to willing to play. 10 person might change things though.

if one of your opponents hit something unlikely so be it. a river fold would be terrible

pre-flop, i was wondering about raising. QJo is pretty good at shorthanded table. although i probably wouldn't raise.

calling the raise for one bet is fine. folding that would be crazy.

some of the literature says play second pair like top pair in six man. and you had top pair.

you generally played it fine. if it was 10 player, i might cahnge my opinion.