This might have already been suggested but I really think that their should be some sort of relationship boost if you actively raise your levies and help your leige in a war - especially if you help him keep his kingdom.
I am a Duke in France and I almost single handedly stopped the king from being overthrown. And he still hates me and just after the war asked to revoke one of my titles! The cheese eating buffoon wouldnt even be my Leige unless I had helped him! Anyway what I thought might work is if you helped your Leige in a war, the game could keep score of your contribution. After the war you would get your contibution as a relationship bonus.
I.e I contributed 20% towards your victory, my leige now has +20 bonus in relations with me.
Thoughts?
I am a Duke in France and I almost single handedly stopped the king from being overthrown. And he still hates me and just after the war asked to revoke one of my titles! The cheese eating buffoon wouldnt even be my Leige unless I had helped him! Anyway what I thought might work is if you helped your Leige in a war, the game could keep score of your contribution. After the war you would get your contibution as a relationship bonus.
I.e I contributed 20% towards your victory, my leige now has +20 bonus in relations with me.
Thoughts?