It's likely there's gonna be something, but(to temper expectations) just because there's a lot of time spent with her doesn't mean it's gonna be a big step up in terms of relationship and "actions".While we may not go all the way with her I feel like the next update we will get something most likely in terms of lewdness from her. As Nyx makes it sound like the beach scene with Erynn is pretty big.
Maybe it will, a potential meeting with the ex-boyfriend can also be something of a trigger for her, that would be one way to "up the commitment level" besides solving everything with Ethan.