Oh Shnarfy! I remember your first thread about this guy a few months ago - if I recall correctly you had your doubts about his committed-ness back then - and it looks like you were right - though it must be an awful thing to be right about :( what an ass he is. Although I don't think anyone expects other people to re-arrange their lives around their wedding, you would expect people to have the common sense to see being asked to be Best Man is an honour and you shouldn't agree to do it if you aren't going to make the effort.
I don't think there's anything you could have done to change this guy's attitude and I think you've been really patient and calm with him to be honest because I can see you really wanted for your OH to have his friend there.
But it's done now and, like others, I do think it's for the best. Now you won't have to worry about him not being able to get there at the last minute or making a half-assed speech. You've got someone lovely who cares about both of you and the wedding and being best man - that's much better!
Shnarfy1:
Come on wedding, I'm ready to become a Mrs now!
Huzzah! That's what I like to hear :D

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I
Audrey!