What are the possible conflicts that might arise between Hamlet and Laertes ?

Before Laertes leaves for France, he cautions Ophellia (his sister) that Hamlet can not love her. He says so due to the gap in social class which will continue to be a very prominant detail through out the whole work. Laertes holds his family in high importance and if one were to die or several then the character would be a foil to Hamlet.