Hello to all who answered this post and thanks for the replies.
I have been to his house a number of times during the day and nite and we have on 2 seperate occasions walked his dogs in and around his neighborhood once during the evening around 11pm and once during the day. We both live in a fairly small town (approx 30,000 people).
And yes he was deaply hurt once by his xwife who he was with from his teens until he was 36 (they broke up and got divorsed when she left him for his brother). Then 5 yrs later he started seeing a girl he eventually lived with who moved to England 5 yrs after that.
Personally my gut says he is definately single and is not ready to make that STEP of sleeping over. I really don't think it has anything to do with him dating others, just taking things slow.