Boyfriend crisis

My bf is a nurse and he is so busy. Always working. And he gets me so mad cuz there are days where he won’t even call to check up on meee. I feel like he don’t make time for me. I get he has limited amount of time, but there are times where he would go a day without talking to me. Then when I confront him, he be like how there will be days where we won’t talk. So idk what I should do about this situation.