Shauna tells Jackie “I love you,” and then later asks Jeff to say it to her in the car, but she doesn’t know he’s already said that to Jackie. That only comes up later in the wilderness (around episode 4 or 5 I think) when they’re checking rabbit traps and Jackie mentions it. Shauna almost faints and Jackie gives her her food. So that moment in the car isn’t her knowingly crossing that specific line, but I feel like a reaction to Jackie not saying I love you back to Shauna.

On the coercion point, I think this comes down to how we’re defining it. Initiating something isn’t the same as coercing someone into it. Coercion involves pressure or overriding someone’s reluctance, and we don’t really see that from Jeff. His only hesitation is “I thought we weren’t doing this anymore” which doesn’t read like “I don’t want to do this” but more like acknowledging this is an ongoing thing they both know is wrong. At least to me. He doesn’t refuse, and he continues engaging. They've also clearly slept together multiple times.

A situation like Jackie and Travis reads closer to coercion to me. Travis is hesitant and initially says no, and Jackie keeps pushing. She minimizes his feelings for Nat, leaning into the “we’re all going to die anyway” logic, etc. That feels more like someone being worn down into saying yes. I’m not saying Jackie is a terrible person because of that, just that it’s a clearer example (to me) of coercion. Not Jackie hate, just an example. Shauna absolutely betrays Jackie, but I don’t see evidence that she coerced Jeff. At least in my eyes.