Boyfriend works to much takes job to seriously

My boyfriend is a manager at a fast food restaurant and he spends so much time there.Idk why I feel this way he gets 2 days off in a row but even when he’s home he’s texting other managers about the store...For example he works from 2pm-1a last night and goes back at 5am the same day like what the hell..Idk it just seems like it doesint even pay off.Dont get me wrong I appreciate the hard work but I feel lonely so why Is that?Maybe I’m the crazy one.