It is rude to only think of yourself.
Liz got a large inheritance from her deceased uncle and has a friend who needs money to pay rent.
Liz wants to figure out what to do with the money.
Liz offers to help her friend pay their rent and uses the leftover money to go on a small local trip.
Liz decides to use the money to go on a nice trip to Europe by herself.
Liz's friend is extremely grateful for the help and is able to live in their apartment for a while longer.
Liz's friend is unable to pay their rent and has to move out of their apartment.