Didn't you say that C'tis is no match for you and killing him will take just a while?

Most of your armies were sitting next to me all the time, later in the port city too, without any movement or real attacks on C'tis. You were wasting your armies
And well, you decided to take 2 provinces of mine with semi-smart idea to not break NAP in that way. But I think that you should rethinkg that plan for future games. You won't convince anyone that it's not breaking NAP

You either wanted to attack me directly [but why didn't you really? I had no armies nearby, and was surprised by Pan attack] or tried to get me to attack you and try to blame me for breaking the NAP [which wouldn't be true].
Did you expect me to live that matter like that? You kept my provs for a long time, sucking gem income from them, without saying sorry or offering to repay that gems, so we could live in peace. It was you who wanted war, so you should have been prepared for it.