I have a suggestion: when you and your wife leave in the moring is it together? Or do you leave one at a time? If you leave one at a time, try this:

Say your wife leaves first, tell her to make little or no "scene" when she leaves....a simple goodbye to you and she's off...ignore Westley completely. And when the last person leaves, again make no big deal out of it, just do what you gotta do and go...don't say, "ok I'm leaving, you be a good puppy, now...I'll be home soon" to Westley. I am not sure if you do that already, but if so, it's just prepping him up for his day of anxiety.

When you come in for lunch or after work, try this:
When you walk in the door again ignore him. Don't say, "oh my Westley, my Baby, how's my little cuteness? Were you a good boy? Come here and give me kisses...I missed you", simply walk in the door, if he's crated then open his crate. Do it calm, don't make ANY big deal of it, just open it, let him outside and tell him to go potty. After you let him back in the house then you can play with him. The key is to not make any scene when you either leave the house or come back into the house.

I fostered a dog before that had seperation anxiety...she'd belt out the most miserable sounds when someone left. I knew that if I could not curb this problem of hers she would never find a home...I tried to make no scene whatsoever when leaving and then getting back, and it seemed to work. Of course, she was not as extreme of a case as Westley is.

I hope you can work this out with Westley...I wish you luck.

Leslie