Where we'd left off last time, god brought down a plague on the Pharaoh because Abram was pimping his wife. Abram is now forced to return to Negeb, where the famine has presumably subsided and word has yet to reach everyone about how Sarai was the Pharaoh's courtesan for a while.
After all those shenanigans in Egypt and some kind of walk of shame back to Negeb, the gang wanders back further along the route they'd originally traveled. They stop again at the altar they made near Bethel before they finally realized they'd gotten too rich in Egypt.
Abram got so rich off his wife's work that he was able to give his nephew slaves and flocks and herds and whatever else the Pharaoh saw fit to send to his new girlfriend's pimp. They had so many herds and flocks that their respective shepherds were fighting too much over all the animals. Abram decided there was too much strife in their groups while there was so much land available. The gang finally breaks up, Abram allowing Lot to choose in which direction he traveled. They parted ways and I assume they had a big party and hopefully Lot thanked his aunt before he went on towards the lands of (wicked) Sodom and Abram went off towards Canaan. We won't see Lot again for a while, but he'll be back later.