Hi Jack,
Maybe having a "resident" stinkbug isn't such a great idea. I do see that bud you mentioned, and it is curious. I would keep an open mind on that plan-of-three plant and I still strongly advise you to save as many seeds from it as you can. And, yes, that bloom does look good. Your plants continue to look healthy and well nourished. I am running an experiment with Miracle-Gro nutrients indoors, based on your obvious success with them.
ZM