Hey OP, I can see others have mentioned it but have a look at The Gottman Institutes 'bids for attention', there's also an article called 'She divorced me because I left dishes by the sink' that I think you should read, it's written by a man who is trying to explain to other men why small acts mean so much - I don't suggest you send it to your husband, but I think you would agree with so much the author says.
Your marriage sounds so lonely from what you've written. My partner is currently out of the house with work from 8am-11pm (sometimes later), he's tired, exhausted and we barely see each other. Because of his long hours I make him a packed lunch, always make sure he's got something to eat when he gets back and will pick up the odd thing he might need from the supermarket, like if he's about to run out of toothpaste etc, etc. That's my way of showing him I care.
During the day he'll message to ask how my day is, and will try and call if he gets a break - just to check in and ask how I am. He always give's me a kiss and cuddle before he leaves, and when he comes back home and thanks me for anything I've done for him. If we do speak it will literally be for no more than 5 minutes, and we'll maybe send 1-2 texts a day....again...all of the above isn't going to take 10 mins out of his day. The fact you can't even get your husband to send you a message is utterly ridiculous and makes me so angry on your behalf.
Now the above is very much the bare minimum. When my partner is off work (which is sometimes only 1 day a week right now), he always prioritises time with me, we're not flush right now so that's nothing fancy, it might be coffee and cake at my favourite place, a cinema date night, cooking me dinner (even though he hates cooking!).
A load of people on this thread seem to be stuck on 'he shouldn't be contacting you during work hours', but that isn't the point, the point is you want to feel an emotional connecting with your husband and he isn't giving you ANYTHING. I've been in those lonely relationships and it is soul destroying.
I'd love to finish this with some good news for you. And I do have some! The good news is that not all relationships are like this. The bad news is that personally (and I am a stranger on the internet), I don't think your husband is going to change, and that resentment you feel...trust me, it gets worse, and eats you up from inside.
You sound lovely though, and I hope that you get to experience the magic of someone loving you the way you need.