Wow.
Ok - as is often said here, sometimes to save your marriage you need to be willing to let it go. I think you are the poster child for this phrase. Your H is emotionally abusive. You found a phone showing a lot more cheating, and he has the nerve to bitch about work? Really? How selfish is this man? "Yes, I've lied, I've cheated for a decade. I'm emotionally abusive and refuse to speak to you because you're hurting. But hey, I work a lot, so tough shit."
mainlyinpain, he has you so twisted from his abuse that you're actually saying he does work a lot and that you shouldn't have confronted because he had nothing to give. HE CHEATED AND LIED - I don't care if he has been on his feet for 36 hours, you had every right to call him out and confront him. You are not an accessory, and he's treating you like you should only be doing things that make him happy. If you don't, he shuts you out.
If I were you, I would not let him in or respond to anything he says for the rest of the weekend, if he says anything. I would see a lawyer on Monday and file. He's so used to abusing you that he thinks nothing of it, and thinks you won't go anywhere. Let him know you're done being mistreated, cheated on, lied to. If he comes back, it's on YOUR terms, not his. He's the one with the work to do, not you. If he doesn't come back, well, I'm sorry but D was going to happen, so why not get that ball rolling.
You can't keep letting him dictate the relationship. He's been unfaithful for far too long. There are too many lies.
What are your boundaries? Write them down. Decide what you will and won't accept. Then it's his choice - he either lives within those boundaries, or he lives without you.
mainlyinpain, please don't take this as judgment or criticism. From your post here, it sounds like you've been being emotionally abused by him for so long you've gotten things mixed up. He's the broken one. It's not up to you to figure out how to say things. It's not fair that he acts like a child and doesn't speak to you for a week, and then explodes. I don't care how busy he is. I'm busy this time of year too. I don't abuse my H because of it.
Please, stop thinking about how not to anger him and start thinking about what you need, want and will accept. You know this isn't right. You know this won't get better if you just keep riding it out. You don't want the rest of your life to be with someone that threatens to abandon you every time he gets annoyed. You don't want someone that cheats and then gets infuriated that you dare ask about it. You deserve better, and honestly, he doesn't. He deserves to be left in the dust, still thinking he's some great prize. He's treating you like you're lucky he's still there. In reality, he's lucky. He's a liar and a cheat, and he has a wife that is willing to work things out.
Boundaries - what are they? Abuse - how do you get away from it? Marriage - a joint effort, or one party catering to another to avoid verbal whiplash and emotional starvation?
Please, consider these things, and be very willing to let him go. IMO, at this point it's the only way that you can rebalance your M.