They both worked at the same place prior to Callie doing influencing full time - a research uni in London. I believe he still works there as I've seen him on the street of the uni.The thing is, Callie quit her job to do full time 'influencing'. A lot of that was travel related and interspersed with being out and about doing stuff. Now she can't go out and can't travel she must be having to say yes to every job that come in to pay the bills. I expect she's got a mortgage to pay still.
What does DanandI do - does he have a job?
It's clear, however, she is the breadwinner - when saving for the house deposit, when buying their car, upgrades for trips e.t.c