Marc, hi and welcome to PC.

Very tough situation you are in, and I salute your honesty in seeking advice.

A few things you said gave me pause, and I'd like to ask you about them...I offer my apology if I offend you. I'm sharing my experience only.

It's a good sign that she is returning to you in a few weeks. I believe it shows she wants to try and work things out...
Do you know if she was stable while she stayed with her family? If so, you may want to think about the dynamics that were different there as opposed to the two of you being together.

The side effects of some of these drugs are potentially extremely hard to handle. Her desire to try the alternative route has been tried by many others; some have been quite successful, others have not.
It's good that you found a psychiatrist who tries alternative treatment protocol. But it is possible she felt you were pushing her into seeing him, perhaps she saw it as taking away some of her choice...has she shared why she refuses to see him?
Perhaps a calm talk about it would help...no pressure, just listening with respect as to what her reservations are about it.
As an aside, have you checked the credentials of this physician? Please make sure of his training/expertise in these methods...reassuring not only your wife but yourself that there may indeed be something worth trying.

My irl experience was that alternative methods were good as an adjunct treatment...I have seen patients be able to take less medications or lower dosages because they did use various methods.

It may also be a good idea for you to seek counseling for yourself. It would help you sort out the myriad of feelings you are probably experiencing from the situation. Sometimes stepping back from it and sharing with a knowledgeable professional will give you greater insight and help you focus on what you need to do for you...

Chronic illness, physical and mental, affect everyone involved. Marc, you have to take care of yourself, also.
You love her enough to want her stable, please love yourself enough to get guidance.

There is love between you and your wife; her coming back to you and your concern about her is obvious...

My best wishes for this to be resolved with love and respect.

In Peace