As a carer I think I may have some insight into you partners actions. When Alex is having a good day and he wants to cuddle and talk for hours and things of the like, I find myself wondering how lng it will last for and how his next bad day is going to be for me to cope with. Don't get me wrong I love his affection and as some one else mentioned, sometimes I have to force myself to take the time out and do as he wants. I usually find though that after I share a good day with him, I am on edge waiting for it to be over and the bad days to start up all over again. I used to think this meant he would be having a good day forever, and I would only end up disappointed when he went all ptsdy again. Maybe that is how your partner feels also.
Tammy