How do we define Workaholic?
In a study led by a group of researchers, they define workaholics as people being overly concerned about their work and they are driven uncontrollable with work and they invest so much time and effort to work which brings problem in a relationship.

There are different ways through which problems can occur if your partner is a workaholic. We get to see a very good development in technology where people stay online most times. All those social media stays a barricade between work hours and leisure time.
“It is not as much about who you used to be, as it is about who you choose to be.”
Understanding the job and its nature
No one wants to be a workaholic and no one chooses to be a workaholic. You must understand the kind of work and reduce work pressure. Maybe you put in a job which asks for wholehearted attention even there you must know the nature of the job and you should know to tackle all the arising relationship issues.
The very important things are you should not lose your temper. It is quite difficult but makes sure you don’t pressurize your partner; you get to spend only less time with them so avoid quarrels during those times and be happy.
Despite his hectic schedule make a foolproof routine for some time and tell him that break from work is non-negotiable.
If you see that your partner is struggling with his work then go help him and try resolving it so that it reduces stress and you get some extra time to spend with them.

A greater balance and cooperation between two different working styles is quite difficult to achieve. There you have to sacrifice the normal expectation and make sure you have a clear idea of your working pattern. If you feel like your partner is missing then make a plan comfortably for both and forecast them in the coming days.