Singles Inferno

I have a question, I've played this game and completed it (could've put a bit more effort into the ending but whatever). And I thought about replaying it again, but I gotta ask Eun-ji isn't a LI right? Well honestly from just the first okay through I have a good feeling that no matter what I choose they can't be a LI and they're just the "supportive friend". I seek confirmation:v