Thanks, Jeff!
Let me see what I can find...
Is it Bound in Blood by David Thomas Lord...looks very hot! And he seems to have written others.
I didn't have any luck with the second one, sorry...tho I found something called 'How to Get Married After 35'
OK, now that I'm at home and can see the picture, that's exactly the book.
As for the short story anthology, I was
close to the title, but that only counts in horseshoes and hand grenades.
The anthology is called
Lovers Who Stay With You, and the editor is David MacMillan, published by STARbooks Press in 2003.
Some of the stories are really
hawt. ...