Sebea dying??

[bwi7]

my clown decided to host the anenome yesterday and it was doing awesome for the last 5 days in the tank, it was full and looking fantastic, then the clown got interested in it. Overnight, something happened, and this morning and all day it's been slumped over and looking all schrivelled up and with one side with half inflated tentacles. What to do? The two green bubble tips are doing awesome, and so is the long tip purple one. I don't get it. Checked all the water and everything was exactly where it should be. Why as soon as the clown got interested in it, and it's still attached to the rock, however it doesn't feel sticky??? Any ideas what's happening?