Husband literally could not give a shit less

My husband left for work for the next couple of months and now our marriage heavily depends on texting, calling, and FaceTiming. So we need to have good communication pretty much. Well since my husband left a week ago it’s been shitty. I’m having the hardest time adjusting and talking to him helps but he literally comes up with every excuse in the book to not talk to me. It’s like I mean nothing. He didn’t even work today. Just hung out in his room and then got food 2 times today and that’s it. Barely texted me. I get it texting is boring sometimes. But it’s like when we do text he’s half way there. Not paying attention to our conversation, saying the same dry replies. I feel like I literally just went from married to my husband could give a shit less about me. When he’s home he’s always begging for sex and showing me attention and to go from that to him not even wanting to call me before bed just makes me feel like I never really mattered. I was just around for his convenience. He’s the type to not go 1 day without sex or mentioning it. He hasn’t spoken about it once. Idk what’s going on but I’m pregnant and insecure and my hormones are getting to me so I get upset a lot that he doesn’t want to talk. So I just decided that I’m done fighting for his attention and for him to text me.

Idk what else to do when I’ve already broken down every day this week and poured my heart out only to get a me too, I’m sorry, or I feel you. Like that’s some shitty support. Makes me feel terrible that I’m miserable and he’s just not even affected. I’m at a loss here, I feel our marriage is just deteriorating while he’s gone. I know that if this continues, I will resent him for it when he comes back home because of all of the hurt I’m going through right now.