There will be exceptions, who knows whether those two were dating their partners way before, or have past history. It happens.
Either way, a PhD in pharmacy (way beyond what I could ever achieve) isn’t a career, is it - it’s a qualification. The other woman, what she studied and what she now earns is irrelevant.
You’re really worrying over nothing. If you try forcing it, it’s not going to work out for you. You’ve got your shit sorted mate, you’re young, you’re clearly intelligent and you’re on a good wage. You’re set for life, be positive on that.