I have understood the case as BLP RK'ed a province because they would't let BLP have the honor crown, then Jester came and helped the said RK'ed kingdom. Then when Jester turned the war and started gaining acres while BLP provinces was nothing else but shells, BLP withdrew and tried to end the conflict in a diplomatic manner. And after mass reporting (Not sure about the facts here) Jesters get two not so justified deletions (not going into this anymore) and suddenly BLP is wanting to escalate the conflict.
But at this stage it is not bullying, you are totally right. BLP is just a bunch of pansies.
Edit:
Also razing OOP provinces, I mean, wtf?