Conversation so far:
How does Season 1 start off?
In the pilot episode, Chuck attempts to rape both Serena and Jenny Humphrey.
Who are Serena and Jenny Humphrey?
his step-sister at the time, Serena.
Did he succeed after attempting to rape them?
he attenuates his behaviors as a sexual predator and becomes more of a manipulating womanizer.
Did he try to rape anyone else?
CANNOTANSWER.
Did his womanizing ways catch up to him?
This leads Chuck to have a temporary rift with both Blair and Nate.
What happens during this temporary rift with Blair and Nate?
CANNOTANSWER.

Question: What are some other very important aspects that takes place in Season 1?
Self-contained rewrite: Besides Chuck Bass's attempted rape of Serena and Jenny Humphrey, and his rift with Blair and Nate, what are some other very important aspects that takes place in Season 1?