I suppose that everyone is different, because the time that Paul and I were apart, we didn't have that much contact, by mutual choice. He'd send an email, a week or so later, I'd email back. Daily communication would have driven us both batty! We were apart for 6 months 1/2 way through our courtship and durring that time we only spoke on the phone after his Mum passed away and again just before he traveled to the states for a wee visit. After our engagement (I was back in Scotland by then), I returned to the states to find work and plan the wedding, so we've emailed a little more often with wedding details, but no sappy love letters...I guess we are romantic in other ways.
Maybe it was better for us that way because prior to my return to the states, we'd never had any contact other than face to face (I didn't even have his email address until well into our relationship).