A difficult dilemma indeed, and one that has occurred across many a culture and through many a century since. However, I think it would be a mistake to bring this most delicate and intimate an issue to your male -tolka to begin with, let alone as grounds for a divorce. Please do not mistake me, sexual desire is part and parcel of humanity and a woman has every right to feel as satisfied in this most biological of needs as a man and has every right to go forth with her grievances. However it's unfortunate that we also come from a society which represses at worst and at best completely ignores the notion of female sexuality. Times change and people grow wiser and more understanding of the fact that a husbands deeds towards his spouse extends far beyond providing sleeping quarters and the occasional gifting of the latest house trends or fashions. Yet, very little I tell you has changed with regards to the fragility of the both the masculine minds capacity for logic and his never ending ego. *Smiles*
So the real question is not how to broach this subject to your tolka but would you truly wish to and could you?
You'd be surprised to find that there is very little that cannot be resolved by honest, heartfelt communication and so side with those who have stated as such. Tolka can only sort out so much. My advice would be to not to expose oneself and ones husband to ridicule amongst his peers and male elders of his and her tribe. No doubt they'll make a laughing stock out of the couple. If in dire straits and the couple truly wishes to make a go of things they should seek council from a more appropriately confidential religious/professional source if need be and only if both parties are willing.
If all else fails. Crush a quarter of rohypnol, three drops of liquidised Vitamin D, one male centered Multi-vitamin and 2 tablets of cialis into his evening cup of tea on the nights you feel like some action and viola! He's all yours. Frat boys have nothing on a woman on a mission