Work work work work

My boyfriend is a firefighter/emt and lately all he has done is work and pick up shifts. I only get to see hin at night now. (we live together) I told him I wanted to be able to see him more and he said he does as well. But he keeps talking about picking up shifts, and we can’t have a single conversation without his job being brought up. He won’t talk about anything besides work . What should I do?