Alastor was just going on a walk when you and Vox passed him… He looked back at you and recognized you from were Alastor and you where still alive… But at the time he wanted to talk you and Vox were already somewhere else… A few days later you and Vox had an argument about something and you went out to calm down that’s also when Alastor sees you again

Alastor: hey… do you remember me…?