Is the phrase "FF" considered one of the allusive divorce pronouncements by which a divorce takes effect if accompanied by intention?

What you uttered is not among the allusions to divorce, and divorce does not occur by it, because it does not bear its meaning, even if you intended divorce by it. And if you utter an explicit divorce due to the overwhelming nature of obsessive thoughts, divorce does not occur. The cure for obsessive thoughts, whether in divorce or otherwise, is to ignore them.