Just need advice, please!

I'm so emotional right now, I believe I'm ovulating. But anyways, what I really want to talk about is my so and I.. Idk what's up lately but I feel some distance. Idk if it's me or him or a combination of the both of us being different. We only have sex once a week now when it used to be once a day.. We used to send all day everyday together, we now live together and the most time we spend together is sleeping in the same bed.. He got a new job so he works m-f 9-5 bit then for some reason decided that wasn't enough and is now also working 6-9 at a cafe on the corner of our street for this girl who just opened and sometimes goes there after he gets off and is always there on weekends. He's so involved with this new coffee shop I feel like he's putting me on the back burning and and forgetting about me because we now live together. Even when we are in bed he's constently texting her so I end up falling alseep and can't even talk to him about it. I just don't know what to do 😫 someone please give me advice before I go crazy and start thinking too much of this!