Long live those innocent, teenage high school days, when spending countless hours on the phone was a normal daily routine. Nope, now there are real consequences that come with that kind of personal one on one time; the consequence being, “feelings.”
Your sex partner should be confined to standard texting and tweeting. If either of you need to call, keep it brief and to the point. Don’t become too engulfed in his personal life and most importantly, don’t end up being his shoulder to cry on for any reason.