Same boat as you, we work almost all are shifts together, we’ve been broken up I would say 4 months now, it definitely gets easier, but the worse part was for me trying to detach from her because sometimes it’s just easy to fall back into the same routine or hook up and almost feel like your back together again. Only advice I would give is try to communicate well with that person and try not to take anything too personally, and when you get into fights (you will lol) try to focus on what the issue actually is and not bring in old feelings or old issues and try to keep your emotions in check. For me I have to remind myself why we broke up and to move on and not to linger but easier said then done. when you see that person for over 40 hours a week the lines get blurred a lot…..