Welcome Joe

What i do for Cheyanne who's 4yrs now is take her to the park for a wild run for about 30 mins then i we get home i give her a treat and assure her that we'll be right back and to be a good girl she's usally so tired she just passes out cold.

And when we get home i tell her what a good girl she was and it's play time and treat time again it seems to have worked with me not sure if this will help you GOOD LUCK

My vet and others has always said to act like it's no big deal when you leave or when you come back but that approuch never worked for me