Hope, the distance is fine...it's actually preferred. If I were you, I would maintain what you have been doing. However, if he engages, be upbeat, happy, engaged. Ask him questions and validate, listen, see if you can detect any emotion. Don't try to fix anything or plan what you will say next. Stay the course and don't make any big changes.
The phrase here that it is a marathon and not a sprint has plenty of meanings. In a marathon, if you are halfway there and you all of a sudden switch to a faster pace, you may wear yourself out and not make it all the way to the finish. Stay the course and no big changes. You can do this!
Me: 44 Her: 42 T: 22, M: 20 D:18, S:16, S:11 Sep: 6 months in 2002 Sep again: March 15, 2015 (5 months) WAW talk again: January 21, 2019