Normal to forgot people's faces?

So got into a fight with my boyfriend we been living together 4 years and now he move out because i ask him to do it, but thing is I can't remember his face at all i try but i can't that's weird because it been just 2 days. Im scare because i have to see a pic to remember but I took my phone down and my mind is in blank again. Why? Have this happens to any of you?