BTA stabbed by tuxedo urchin

Hi Guys,

So recently my tuxedo urchin smashed his way up against my rainbow bubble tip anemone which resulted in many puncture wounds. A few days later the anemone still looked quite rough but I thought this was part of it healing. Its been a little over a week and the anemone keeps getting worse and losing color. My sunburst anemone is right next to him and is doing wonderful along with all other coral in my tank. Any hints as to what is going on or if I can help the anemone in any way would be greatly appreciated.

Thanks