I suspect your T was NOT suggesting you get a divorce. I don't think good T's will offer advice. What I think is that she was pointing out to you that there ARE choices and it's YOUR decision which choices to make. When you're conscious that what you're doing is by choice, you can feel more empowered.

Of course, many times, as I've experienced, our fears or other emotions 'guide' our choices, for better or for worse. That's the goal of therapy, I think, is to become very conscious of unconscious actions/reactions and thereby, hopefully, gaining that empowerment we seek.