Engineers With a Partner/Spouse in Medicine

I think it is common. But the partner occupations you list are very different. It also depends on how advanced you are in your career. The stages are also quite different (early career, young kids, and so on).

What particular part are you having issues with?

General advice is to realize your partner will be employable a lot longer than you. So if you make a shit ton more at the moment, it is wise to realize it is not a forever situation. Also, residency/student life is tough (but we had a lot of fun in those child-free days). My spouse had to adjust to the reality that my studying is till the day I retire (maybe the day I die .. lol). It is really nice when my spouse acts as a first responder in a casual emergency (I am just watching helplessly) and when friends ask my spouse for free advice. Good and bad with everything I suppose.

I am, my gf is a doctor and I am an engineer, but tbh... what is the question about? Are you in relationship with a person or with their job?