I can email and call her whenever I need to. I usually call her for emergencies or check-ins. Sometimes I call and don't leave a message just to hear her voice. I can email her for anything and everything: reassurances, check-ins, something we find that we want to share with the other, etc. I find emails so helpful to maintain a connection and work on object constancy.
And I can text her on the telehealth app, but we never do because one of us forgets to check.