a dream

i was at a house similar to my grandmother's with my friend and his aunt. his aunt is cooking in the kitchen and me and my friend are standing in the kitchen doorway when from nowhere a man comes walking by us and goes up the stairs. the man is looking very sad and stern, which makes me sad and confued. So i turn to my friend and ask who is he. My friend tells me that its his father and that he's not usually sad like he was.this is strange because i never mer my friends father, and he has a walking disability preventing him from walking.