little!isaac / dr. allison
You're absolutely right, it would have been a vicious cycle. Isaac, you did nothing to deserve all the awful things he had done to you. You were only a child. Fear makes us do things that we wouldn't normally consider doing, but that doesn't mean that it was wrong to have done what your instinct told you. Part of it was definitely instigated by the bite, but without it, you would have been suffering for a much longer time. You may have lost your own life because of it.