It is so important to me that people know that Conrad hasn't "changed." Yes, he has gone to therapy and become more mature, but the only reason it's viewed as a radical difference is because we met Conrad at the worst moment in his life. Belly even clues us in on it in the first episode when she asks him why he's been acting so different. Conrad has always been thoughtful, and selfless, and empathetic, and while it's still shown through in flashbacks and little moments throughout the first 2 seasons, it's only now, after he's put in the hard work to heal, that his true personality is getting to shine.