describe the meeting of Tom and Gatsby. What does this meeting reveal about them?

We see the first meeting when Tom and his friends drop in at Gatsby's house. Tom is rich and arrives on horseback. Really they couldn't care less about Gatsby himself except the fact that Gatsby is really rich. Gatsby is obsessed with Daisy who is married to Tom. This of course makes things really awkward. Gatsby says "I know your wife" to Tom who makes things even more awkward and strained. Gatsby becomes quite aggressive to Tom even though nothing is overtly stated.