Dude is one of the best guys in the world, would give you the shirt off his back if you needed one.
But he can't live by himself for any period longer than 2 months. Married and divorced three times, there was a moment 7 years or so ago, when I mentioned to him: "So, Dave, you and Linda are coming up on that magical 30 month time-frame, isn't it about time for you to dump her and start seeing someone new?"
2.5 years had been his average relationship length, since I first met him. With about a dozen 2 to 3 week mini-affairs sprinkled in, just for good measure.
He's boastful that he's never had a one night stand.
So...about a month ago, Dave starts up a convo on Facebook of all places, with a widow he went to HS with, 32 years ago. She's an attractive and pleasant 52 year old woman. She's at the tail end of a 5 year old long distance relationship with a married (also former HS classmate of them both) guy. My buddy Dave has just ended a 2 month mini-affair (his fourth one since he and his wife separated in March of 2009).
She apparently flew to Florida to meet with Mr Married Affair guy last weekend to break it off for good - with presumably the one last night of 'goodbye sex'.
This past Monday, I log onto my FB only to notice that my wall is plastered with proclamations of love messages back n forth from them both, all up and down the first half of my page. [example: Falling in love is when you lay in their arms and wake up in your dreams. - Awww, is that for me? -- Awww....is that in anyway directed to me?????
I called his cellphone and had to leave a message: "Dave, those messages you two are sending back n forth are out in the public view."
He apparently did not get my message.
Today I log on again for the 2nd time this week and there are three pages of him and her back n forth, back n forth...Syrupy love proclamations (which I have nothing against, but IT'S FUCKING LUST, DUDE - not love). I haven't talked to him since Sunday, but I can read all about his lovelife of the past week - if you catch my drift.
So, I send him a private email on FB.
With youtube love-song videos attached and this image, which I took off of FacebookFails.com:

That was an hour ago. I just logged on to FB again about 15 minutes ago and here is his mea-culpa:
Opps...I didn't know some of these comments were public.
Oh well....you can just throw a bucket of cold water on us but it won't do any good!!!
48 minutes ago
I did leave this note - after his FB comment for the world to see: "I thought I taught you how to use the internet, 11 years ago, Chief." -- At least Dave has a great sense of humor!
I was so temtped to just post that image out on the front wall so all 20 of our buddies and 35 of his friends could see it.
My question is - to you men...how do you handle a situation like this? Do you step on your buddy's chest and slit his throat for the world to see - or do you cut him some slack - and smack him around in private? "Wake the fuck up, McFly - you're making an ass of yourself for the world to see."