Why is my arboricola bush dying?

I got a arboricola bush about a month ago, it's still small in a 5-6'' pot but all of a sudden it has just started to wilt, drop, lose its sheen, and the leaves are getting softer. For about two days it ended up next to my window that would get sun and I moved it remembering it's not a full light plant. I moved it a bout a week ago and still nothing. I mist it every couple days and check the soil to make sure that it is getting enough water but nothing seems to work! What gives?!