If you think about the whole thing, it gets rather enormous. So, try to focus on what you are doing now. Make sure to take time for yourself. Make sure to do some fun stuff together.
It is possible to work through the pain. (My lived with a FF, although has insisted there was no PA, and she turned out to be a nutcase, too, BTW. And I'm 99.9999% sure he's not lieing, since he confessed when he really did have a PA. But anyway...) Just worry about today today. Worry about tomorrow tomorrow.
But anyway...) Just worry about today today. Worry about tomorrow tomorrow.