Board Game Arena

My opponent start on the bottom with JJ and flush on the middle.
I prefer JJ on the middle and flush on the bottom.
Explain me please, what is my thinking error?

I guess he's gambling on a quad/fullhouse on the bottom row, or triple on midle/bottom and score a top pair.
But also probably set up a recovery strat to convert the flush middle in a high single/pair if things don''t go well