I haven't read your whole thread yet but my H contacts me a lot more of a night. I think that's when all is quiet, the days work is done and either A: he is bored and lonely or B: that's when he has nothing to do but think.
If there is OW maybe that Is when she is not around/ asleep?
Stay strong.
M: 29, H: 31 D: 9 S: 8 T: 13 Y M: 9 Y ILYBIDKIILWY 12/09/2012 ~~~~ Worrying does not empty tomorrow of its troubles. ~~~ it Emptys today of its strengths