France decides to break their alliance with me as Netherlands, so I fear and attack and I begin to prepare for possible defense against them. Next month they a royal marriage and following month they sent alliance request (me personally requesting alliance was x out). And their Opinion modifier is jumping between 55-99-143. The claiming of me not giving them cores/claims keeps appearing and disappearing, but each war I gave them provinces with claims on them.
And they repeat the cycle when their ruler dies...
And they repeat the cycle when their ruler dies...