I've noticed this too in my H. But he's always been a bit forgetful, and I usually have a mind like a steel trap.

I wonder if it's a good sign that he remembers conversations more than me lately. :P

Me - 30, H - 32
T - 10, M - 6, D - 1
DD#1 - 4, DD#2 - 2
on/off OW 4/09 - sometime Summer 2010 (Told me about OW 4/10)
Separated 6/11/09, divorced 8/4/10, trying again 9/2011