In The Godfather, Part II there's some conflict between Michael and Tom:
TOM: That plane goes to Miami.
MICHAEL: That's where I want it met.
TOM: Mike that's impossible -- they'll turn him over to the Internal Revenue, customs, and half the FBI.
MICHAEL: It's not impossible. Nothing's impossible.
TOM: I'd be like trying to kill the president -- there's no way we can get to him.
MICHAEL: TOM, you know you surprise me -- if anything in this life is certain -- if history has taught us anything -- it's that you can kill anybody. ROCCO?
ROCCO: Difficult -- not impossible.
TOM: Why did you ask me if something was wrong when I came in?
MICHAEL: I thought you were goin' to tell me that -- you were going to move your family to Vegas -- and that you'd been offered the vice-presidency of the house and hotels there I thought you were goin' to tell me that.
TOM: I turned them down -- do I have to tell you about ever offer I turn down?
MICHAEL: let's do business.
TOM: Alright -- just consider this Mike -- that's all just consider it. Now ROTH and the Rosato's are on the run -- are they worth it? And are they strong -- is it worth it -- I mean you've won -- do you have to wipe everyone out?
MICHAEL: I don't fell I have to wipe everyone out -- just my enemies -- that's all. You gonna come along with me in these things I have to do -- or what. Because if not you can take your wife, your family, and your mistress -- and move 'em all to Las Vegas.
TOM: Why do you hurt me MICHAEL -- I've always been loyal to you -- I mean what is this.
MICHAEL: So -- you're staying?
TOM: Yes, I'm staying. Now what is it that you want me to do?
What is going on in this scene? Why is Michael suspecting Tom? Why is Tom getting job offers? What is the source of this strain in their relationship? Why does their relationship always seem a little strained?