Look into PACT Stan Tatkin. Or EFT, Imago, Gottman. Couple therapy has to be more than hashing it out with a witness in order to be effective.
like someone else said, not a lot of info on which to provide feedback but IME many couples fail to create new experiences together as well as fail to really learn to make their partner a source of support. So the 'magic' wanes. Except it's not a matter of magic but of the right behaviors