They really couldn’t see a lot of each other, and maybe only spoke to each other once a week on phone calls.
The world was a much larger place in the ’60s, so communication was even quite difficult at times.
They have very separate lives.
Brianna’s at university in Boston, and Roger’s life is in Oxford, so when you find them, they’re in the midst of a long distance relationship, which, I think, is quite testing of them.