Oh yes, I get what you mean. They have a really deep bond and are really close friends. For me, even I would hate it if their relationship got downgraded into a stereotypical romance of "Hurr durr you are so hot and I am so fat lets have a STUPID amount of bed-breaking s--." I'm sure you've already planned plenty of characters to fulfil that need for players.
Personally, I love their deep relationship that builds upon mutual trust and teasing. And how they both support each other through their tough times, and help each other grow beyond their initial flaws. So a slower romance, where they initially aren't aware of their growing feelings... And then even once they fall in love... And they spend more and more time together, which forces them to realise "This is the kind of person I want to spend the rest of my life with"... Then their relationship remains roughly the same, but with a lot of fuzzier intimacy... Awhhhh....
I got a bit carried away there, but I digress. I'll probs buy the game once Ch2 comes out. Since even at her most recent stage, the elf is still a little too thin for my tastes. Best of luck with the gamedev~!
(Btw we're going through all this trouble to rescue the childhood friend whom we want to continue a relationship with... So how are the other relationships balanced? Is it like a harem, or is it that we're just rescuing our "friend" and not "girlfriend"?)