User blog comment:SoulRise99/HISHE: How Fairy Tail Should Have Ended/@comment-3045936-20170728223500/@comment-7418318-20170731165546

NaLu might be unconfirmed and thus technically "fanfiction"... but NaLi even more so. I'd even go so far as to call it nothing but a fantasy. If it had been there in the first palce, it has been very thoroughly made clear to no longer be the case anymore.

Save for that one scene where they had pretty much no other choice because of being locked up together Natsu and Lisanna didn't so much as SPEAK to each other for years (both in real world and in-story time).

And the only potential romantic partner that Hiro teased for Lisanna in this final chapter was Laxus for crying out loud!

So yeah, pretty much agree with the Anon: NaLu is a possibility, NaLi is not.