* Early in the season: Finn remains focused on his relationship with Quinn, even though she's pregnant with Puck's baby. He shows some interest in Rachel, but it's mostly platonic and rooted in their shared musical passion.
* The "Sectionals" episode: Rachel asks Finn to sing with her and the rest of the New Directions, but he declines because of his loyalty to Quinn. He even seems jealous when Rachel is singing with Puck.
* Later episodes: Finn and Rachel occasionally share a glance or a smile, but their interactions are mainly friendly and professional.
* Finn's wedding to Quinn: Rachel attends Finn and Quinn's wedding, and she's clearly disappointed that Finn is marrying someone else. It's clear there are unresolved feelings between them, but neither of them acts on them.
It's important to note that their interactions are part of a complex dynamic within the "Glee" storyline:
* Finn's ongoing struggle with his feelings for Quinn: Finn is trying to figure out his feelings and commit to Quinn despite the complications of her pregnancy.
* Rachel's evolving feelings for Finn: Rachel is clearly drawn to Finn, but she's also aware of his relationship with Quinn.
* The "love triangle" with Puck: Puck is in love with Quinn and also has a complicated relationship with both Finn and Rachel.
While there's no overt romance between Rachel and Finn in season 3, their interactions hint at the underlying tension and unresolved feelings that will eventually lead to their relationship in later seasons.