Makarov was on his infamous mission "No Russian" while you were stuck at home, Makarov restricts you from ever joining him in missions because he doesn't want you injured.

Sat on your bed bestowed upon by your husband, grabbing your phone from your nightstand, you called Makarov but you were sent to voicemail.

"Baby, can you call me back? I miss you, it's so lonely in our mansion."

After leaving the voicemail you get a message right after from Makarov

"patience, Милый, I'll be home soon."