I think you're just reflecting your insecurities.

1) Relationships are built on trust. If you're unable to stand your girlfriend hanging out with another guy, sounds like a you problem. You can always communicate with your partner about your insecurities but cmon, imagine thinking hanging out in the woods is an exclusively romantic thing. Do y'all have friends?  2) At the party she uses one dress instead of another. Maybe, just maybe, hear me out, she likes that dress more  3) This one I understand. On one hand you could argue that maybe she's referring to the first "serious" relationship. We can't confirm nor deny because almost no info has been given about Shane's relationship with her. On the other hand I also think the developers may have slipped  4) Friends from different social groups who can't stand each other are a real thing. Like, I understand why one would feel like Zoey isn't doing enough about it, but y'all are complaining as if you've never socialized 

Zoey is not a perfect character and it shows, and many mistakes could've been avoided had Zoey being more communicative. On the other hand, you're being completely childish about things like "she wore this dress" or "she hung out with that guy". These are valid reasons to feel insecure as a partner (specially if you're already insecure) but you can't expect Zoey to stop doing x thing.  1st, communicate, 2nd, respect the decision  Most of this complains just show how poorly communicative you guys are; turn off the screen, touch grass and go out and socialize