toomanydaves - I don't really understand or empathise with the jealousy thing, so maybe what I am going to say is totally off track.
The way I think about my partner's life versus my life is that we each have 168 hours a week in which to do all we jointly have to do ie a total of 236 hours. We spend one third of those hours asleep, so that leaves 224 hours of waking time for everything else.
Into those 224 hours we have to fit money-earning work, household chores, fun time with our children, work time with our children, time together planning and organising and doing joint projects and time together relaxing, plus each one of us needs some time of our own to do want we want alone or with friends/family. Plus we have to socialise as a family.
My partner is out of the house at work (or travelling to work) for about 60 hours a week. Frankly, that already eats significantly into our time. If I wanted a career that equalled his in status and salary (and I am perfectly well qualified and experienced to have this), I would also need to work 60 hours a week. Even if we organised our lives so that we outsourced everything we could, our relationship and our relationship with our children would suffer dreadfully from a severe lack of time and we would be very stressed.
We could both choose to work 40 hours a week. But I don't believe that our joint 80 hours would earn anything like what my partner's current 60 hours do, because that's the nature of work - big, financially rewarding jobs require a big time commitment. Jobs with a lesser time commitment tend to be far less rewarding.
So I am quite reconciled and happy with the status quo. I shall continue to be primarily at home, and work about 20 hours a week around school and the children. That's the best option for the two of us together.