she loves Alana bc Alana is Sylvester's first friend in their new town (they moved in the summer before sylvester and Alana were in 7th grade)
Sarah teases Sylvester (when Alana isn't around) that Alana is a cute girl and "I would condone your relationship" but Sylvester isn't interested in Alana in that way + Alana finds out she's gay in 9th grade