I don't think Episode 5 resolved much of anything, I think it hinted at future developments that will have to do the actual resolving.
The kiss with Sage at the end is significant, but only because of the implication that Sage is starting to consider moving on from Chad. She doesn't actually do any such thing yet, and Melanie and Sarah's weird conspiracy reinforces that; they feel they need to take action to make anything actually happen.
Likewise, the 'just friends' route with Maya and Josy strongly suggests the girls might still have feelings for the MC, but officially they remain committed to each other. It will be up to later episodes to actually turn this information into a path to a relationship.
In short, Episode 5 does setup some things for the future, but for the most part the relationships and plot threads are all were they were when we entered the episode.