Support Surgery for Abused Rescue Kitty

My sweet 8 month old rescue kitty that I adopted at 8 weeks old was unfortunately abused and hit by my ex boyfriend. When I came home from work I found her in terrible condition, an injured bleeding eye from the inside caused from blunt force trauma, a wound above her eye, and unfortunately her jaw was open and she was drooling with cuts on her tongue. I immediately took her to the ER vet and they told me that they were concerned about a fractured jaw that they hoped wouldn’t need surgery if she could still eat her wet food and I would continue to give her pain meds around the clock. She will not eat and it breaks my heart that I’m going to have to most likely through with the surgery and or a feeding tube. I appreciate all the support and anything would help us. I just want my baby to not be in pain anymore.