Do you two have "The Handbook", the one a a lot of ED therapists work from? If not it's in the library, and you can get it from books on prescription from your GP - take the prescription to the library. Or, you can order a copy for a couple of quid from the library.
Perhaps you could plan the fours weeks by photocopying the blank meal plans, enough to cover the four weeks. Fill them in together. Go shopping for the first week's shopping. And write up lists for the next three weeks of shopping that need doing, or do it online so you just need to repeat last order if sticking to the same weekly plan for the four weeks.
Then book appointments with GP, Shrink, and ED nurses for the time you're away so that she is being monitored, supported and encouraged to follow the meal plans.
Your OP says she wants you to go. You want to go I really think you should do what you reasonably can in terms of preparation, and setting up monitoring and a safety net, and go. Can you think of how positive it will be for you both individually and as a couple if you are able to do something that is a 'normal' part of your career and its progression, which is ultimately good for all of you?
Do you like to feel like she's dependent on you, are you a 'rescuer' personality type? When she says she wants you to go, are you getting mixed messages from her, that she would really rather you stayed?
Recovery is a process, it has ups and downs, and we all as adults need to be able to cope with change, or learn how to cope with change, which can't happen if changes aren't ever made for fear of relapse. The ED will be holding you both to ransom. If it were my partner, I wouldn't want him to be trapped, or held back.
This is the book I am referring to, and ED therapists tend to use it when treating any ED with a behavioural therapy approach. It has meal plan sheets to photocopy in it, and lots of advice, strategies, and personal success stories in it. It is definitely worth adding to your library, to your armoury of tools www.amazon.co.uk/Overcoming-Bulimia-Nervosa-Binge-Eating-Prescription-ebook/dp/B0097AY1NQ/ref=sr_1_fkmr0_2?ie=UTF8&qid=1395708553&sr=8-2-fkmr0&keywords=the+overcoming+bulimia+handbook Don't worry that it has bulimia in the title, the meal plan sheets are the same for most ED situations.
Does she have any medication? Could you ensure that it is all arranged with the repeats being done by the chemist so no room for error there, perhaps even asking them to deliver while you are away? Does she have the number for the emergency mental health team if she needs to make a phone call for support out of hours? And, of course, if she doesn't - get the number.
If you don't go now, is there a point in her recovery where you can see that you would feel comfortable with leaving her?
Of course, it is totally your decision, an you need to weigh up what is right for you, her , and DD. Ringing the helpline for advice is a very good idea.
Best wishes whatever you do decide to do, your family has my sympathies as I know that EDs take their toll on everyone.
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