I got Maia a little while ago, but only just started having her in the party because I wanted some other people around to do certain quests in Neketaka.  Despite this, she just brought up the romance option.  I'm guessing because of my reputations in personality traits or my choices in Neketaka or something.

 

I wasn't really planning on doing the romance, but I've only had one intro conversation with her and I really like Maia as a character so far, so I'd be bummed to miss out on Maia stuff.  Is there going to be many interactions after this, if I reject the romance thread?  Like conversations and reactions?

Companions react to certain things. You will have her personal quest no matter what. Romance adds a bit of content, but not much unless you are interested in said romance.

That's all I needed to know! Thank you!