Need Advice: My husband travels without me and drinks heavily when away?

The problem here, is that you're making yourself too available for him, while he's making himself unavailable for you. Simply put, you're too predictable and always "there". He would probably say that he knows you backwards and forwards and can read you like a book. He knows that no matter what he does or what he doesn't do, that you'll be there, answering the phone, waiting for the calls, doing your wifely duties. It's almost as if you're his mother and he's the little boy going out. You are "Ground Zero" and you're the stability of the marriage. You are "home base with the anchor", and another way to put it, is that you're the woman in the house and he is the cat that disappears for a few days and then comes back to the doorstep. That woman will always answer the door for that cat. You need to show yourself to be more busy, more occupied, more unavailable. He can 100% count on you answering his drunk phone calls at 2 in the morning, and he'll keep doing this because you're always accepting his calls and being there for him. I'm suggesting this, because you mentioned you don't know how to bring up the subject, in words, which would not get him all riled up and ready for battle. Don't say anything. Do something. If he were to call you and you didn't answer, I'm sure it would get his attention and he'd be wondering "gee, why isn't she picking up the phone?". When you start to behave differently, that will get his attention. If he wants to go out of town without you, then let him go, but don't be so available when he calls from out of town. This should trigger an alert within his head, that he's abandoned you for too long, and that something with you has changed. My best to you.