I’m pretty sure that’s not difficult, call and text every once in a while(even a month or so is normal), hang out if your friends live in the same city and I’m pretty sure you’ll remain friends.
Eating anything around 75+ GM protein would be enough for you. However if you want to get into fat shredding and muscle building state , decrease your carbs to around 130–140gm and increase the protein intake to minimum 130gm.