I guess this might not be useful for Ascendent, but rather than try to rescore the kiss scene, I wonder if it would feel more natural if you were to place parts of that track into one or two of the previous films? Like when they touch hands in TLJ, you could replace the Force theme, which I feel gets overused somewhat in the Sequel Trilogy, with a part from the Farewell track. You could retroactively establish it as their love motif.

EDIT:

I’ll be honest, I really really don’t care for Reylo, but it is undeniably really hot. We should lean into that. - JJ Abrams to Chris Terrio