Good to hear Marmite is on the way to recovery!

My experience with rabbits coming out of stasis is they were never interested in eating their usual favourites. I had more success with “foraged foods”.
So, edible weeds I had in the garden, rose petals and leaves, grasses, willow leaves. Raspberry leaves are good for the tum if you can get them. I believe mint is supposed to be good too.
After that, parsley and carrot tops, dandelion greens were favoured.

Fluids are important so keep trying different things. Very diluted juice, cold herbal tea, rehydration formulas.
My girl Jersey liked the slight saltiness in rehydration fluids and it has glucose for energy also.

Some of the other things that can help during stasis or gut slowdown are probably not appropriate for your girl right now as she has an incision. Ie. encouraging movement, massage etc. Hopefully the vet treatment will continue to keep her gut moving along.
Is she still having any medications?

I got into the habit of emptying the litterbox frequently for a recovering bun. So i was able to tell quickly if they were still toileting okay.
You notice their behaviour change also when they’re feeling much better.

(((Marmite)))

I should have read your post more thoroughly! I see she is still on a med. Is it one for keeping her gut moving? Is she easy to give meds to??!

I think it’s just a matter of time now for her to heal up and feel
more like her bunny self. : )
Keeping to her routines and minimising stress will always help.

I had both our buns spayed at the same time this February, and one of them refused to eat and had to go back to the doctor to get some fluids and meds. I had to force feed them a little bit, both of them, since they didn’t want to eat at all even after the 24 hours from surgery. (Syringe fed with crushed pellets mixed in with a small amount of cooked oat flakes and water, as the doctor ordered.) For our buns it took a bit over a week before they started to eat anywhere near normally. They also didn’t drink normally during that one week of recovery. I offered them really wet veggies, so I suppose they got some water in that way. I tried to syringe feed them some water, but they hated it. However, after two weeks from the surgery both bunnies were eating normally and now the chubby one has gained back all the weight she lost during that surgery time… not that she needed to, haha. Anyway, so I wouldn’t be too worried if your bunny is already pooping and eating at least something. Oh, and I also offered them orchard grass hay, which they nibbled better than the timothy hay at the beginning of their recovery.