Hi Mary, your post is timely for me and I can now sympathize.
I had SBRT last April with a pre treatment psa of 8.32. In June it fell to 4.02 and then fell further to 2.65 in September. But today I got my latest result of 3.13.
Like you and your partner, I was prepared and had read about
the likelihood of bounces, but let's be real...it feels better when the number goes lower. I am, however, jealous of your 'trend'
Great idea for a thread and I hope others will share.