I will pray for you and your family.
As far as advice, I have just ‘skimmed’ the thread, so forgive me if this is redundant:
Maybe you would personally be helped by the spiritual direction of a good priest. Over and above therapy, a good priest, especially your confessor, would have your best interests at heart, and would be able to counsel you on the moral, practical, and spiritual aspects of your situation. He might be able to suggest something that would be appealing also to your wife, rather than to force a primarily Catholic solution on her. There are many interdemoninational organizations and books out there for marriages in trouble, as well as even some secular ones that have very good results, and you would be able to apply these principals to your own spiritual life, while offering them to your wife on the merit of the non-Catholic authority, if that would be more palatable to her.
Also, don’t be afraid to ask for prayers for a ‘special intention’ through your local parish or any other group. If you are close to a convent or monastery, it would benefit you to request the prayers of the religious for your marriage, and for God’s Will in all things.
May God bless you and keep you, and guide you safely through these difficult times!