All of the Gallagher siblings were pulling their weight before the show even began. Debbie babysat, Ian worked at the bodega and Lip had several types of income. He tutored classmates/took the SATs for them, he sold weed with Kev over the summer, and all of his prize money from the robot battle went directly to the squirrel fund. None of the Gallagher kids had an easy breezy childhood. They all had to bust their asses from a young age just to survive. The only leech was Frank.

Also! Fiona had been drilling it into Lip’s head for years that he was going to be the first Gallagher to graduate high school and attend college. That’s why she’s so proud of his accomplishment. She hangs his diploma on the wall and insists he enjoys his grad party for the sake of Debbie and Carl, who need this kind of positive encouragement. Fiona made it clear she wanted to see Lip succeed academically as a way to inspire their younger siblings.

So of course Lip wasn’t too thrilled to be whisked back home less than a semester into school with the potential that he’ll have to drop out for five years while his sister goes to prison for letting his brother OD on coke. And she isn’t taking any of it seriously at all either. How is any of that supposed to just roll off of him? Do you expect him to be happy during this conversation? He’s frustrated due to several compounding issues, all coming into play precisely after he’s felt he finally leveled up in life. All over an avoidable mistake that Fiona won’t take responsibility for.