I have struggled with future tripping all of my life.
One of the things that I forget when I am future tripping is that I don't have to "stay" in the relationship that I am future tripping about.
In my case I was trying to act perfectly so my loved one would not drink. I had very tunnel vision about that. What I would wear, say, how I would be. I spent a lot of time/energy trying to pick up moods, encourage him etc. I thought that 1 + 1 = 2 (which is way to rational for an irrational disease).
I never considered that I could remove myself from the relationship.....and thus remove myself from a lot of the future tripping. I thought I had gotten married so I needed to stick with it, and my future tripping was about how to make that work.
I used it to try and control and uncontrollable situation....if I could plan it all out it would work out okay.
It also served for me to not be very present when I was in it.....I was so much in the future that I never asked myself if I wanted to stay in the relationship.
So Free I get it. I had to look at the core of "why" I was future tripping to help me figure out what was truly useful to me and what was part of my old way of coping.
Great question.