Remembering birthdays

Don't ask me to remember birthdays. Or your name. That's hard. But. I'll remember your face forever. If I've lent you anything, that too. The good and bad moments we've had, (I'll be discreet about the bad ones). Any favours you've done for me, And need repaying, those certainly. Much of what (and whom) You like and dislike, Even things you're allergic to. Just don't ask me to remember birthdays.