what's Paul's relationship with his father, sister, and especially mother?

Paul's mother awakens some dormant emotions in Paul, but he ultimately represses them, unable to deal with both his own imminent death and hers. She is highly maternal, dispensing advice to Paul about the war that is both caring and naïve. Paul feels    disillusionment, sadness, and futility when he sees his mother dying. Paul's father asks a lot of silly questions about the front. Paul realizes his father knows nothing about what goes on at the front and it is very uncomfortable to talk to him about it. There is not too much about Paul's sister. He seems to care about her but his dying mother distracts him.