Hey just some trite advice/insight that I try to follow for myself.
Sometimes people are unpleasable no matter what you do, the great thing about this for you is that once you realize that nothing will please them you can do what ever YOU want because it makes no sense to try to please that person.
I will assume that the people involved here are intelegent, passionate folks who find themselves in difficult relationships in which they are trying there best to improve with intelegence, feeling, compassion and respect. As I am new and everyones strories are unknown, please excuse if I insult or repeat things that have already been discussed.