Well um the wolf was trying not to eat the pig if he did as the pig did. But the pig was scared of the wolf so at the last meet he didn't know. And the wolf was very hungry and maybey couldn't do the dtuff the ppig couldn't. and the pig provoked him by saying that it was him that scared him.
Wiglaf is presented as an honorable, brave, and a loyal man. Even though his companions aren't brave people who wish to battle, he reminds them of the anglo-saxon values and chooses to help, instead of cower. A true warrior should never back down from a battle according to him, and he remains loyal and helpful.
A - The dog is probably lost :))