Workaholic is just a tight framing around priorities. Someone who focuses too much on work is ordering their priorities in a certain way. All the excuses in the word don’t change that.

Every time they spend their time on their job, it’s a decision to not spend that time on something or someone else.

Maybe that’s critical to their long term survival. Maybe it’s not. Maybe they are chasing success and will reach it. Or not. Maybe they’re doing that because their parents were like that and it’s learned behaviour.

But it doesn’t matter. People don’t really change that much in the long term. Don’t stick around because you think they will “improve”. This is who she is. If you’re ok with that, set your expectations appropriately. If not, make a hard decision sooner rather than later.