Why does Jesus intercede or Advocate after salvation?

In several passages, we see Christ as our advocate (1 John 2:1) or our mediator (1 Timothy 2:5). My question is three fold: - Why does Christ actively mediate or advocate after salvation? Does God the Father forget that we're saved? - Also I've often heard it said that God the Father is against us and Christ is for us, so does that mean that the Father and Son have two different wills? One that hates us and the other that loves us? - Does God the father love those whom Christ advocates for and is God the father angry at believers every time they sin?