Player B simply gains a victory point. Since she was ousted, she does not gain the 6 pool. The most common example is an aggravated hand strike done at long range. You may not play superior Bonding on a non-bleed action just to get the stealth. In general, you may only play action modifiers which are appropriate to the action.
Strikes resolve, and damage is dealt, but no damage is healed or prevented until the next step.
So excess stolen blood drains off now. Damage is resolved, and now damage can be prevented, and unprevented damage can be healed. So if you play Theft of Vitae to get more blood on a vampire than that vampire's capacity, that excess blood is lost before it can be used to heal damage. In other words, you can wait to see what your opponent plays for her strike before deciding whether to play Wolf Claws. Organizatoinal Questions 4.1.