Deb Elle is right. you are buying trouble where there may be none. Cant you in your position with your facility find out if he actually received a directive to build up his hours? If not and he is on the up and up he wont mind your suggestion of going with him.
You need to be careful here my friend. Stop letting your emotions undue all the hard work you have done. You will push him away with all this....dont mean to be blunt but if you keep it up, especially with no proof of anything at all he is going to start feeling like this is the way your marriage will be forever.
Do you really think he believes you are that naive? I think he would have come up with a better plan if they were reigniting again.