It is interesting how peoples friends agenda can reek havoc in our lives. I wouldn't pay too much attention to the friend. It is likely that he has friends that are telling him he is making a mistake. Unfortunately, if he is a MLC then he will only listen to the people that agree with him.
If he did mention that his friend said somthing about validating his opinions, then I would probably say something along the lines of "Honey, why I didn't even think about getting relationship advice from (insert name), afterall he has had so many of them he is bound to be very experienced" Sorry I can be a bit caustic
As far as celebrating on Friday, by all means do so, with or without your H. I would ask him something along the lines of "hey, I was thinking about going out and celebrating friday night, do you want to go out?" Regardless of his response I would go out
TwinDad Me 39, W 36, M 11 W - MLC, WAW???? 2 Kids B/G 3 YRS Old Start of the Long and Bumpy Road..... On the verge of piecing.....a new beginning