When I'm talking about my gp w/my bff at home I call him his first name. I have a stuffed animal who is named after him. Lol. Sometimes I'll still say Dr.____ when I talk about him at home. When I see him and talk to him I only call him Dr.__________. When I write letters to him in my journal I have used various nicknames. Here are a few of them:
His middle name
Capricorn
Saturn
Underdog
Superman
Clark
Romeo
Ken
The Beast
Prince Charming
Big Bad Wolf
McDreamy
Guardian Angel
Adoptive dad
and Dentist lol