You’re absolutely right about Finn/Poe, clearly a source of untapped potential, considering their chemistry.

Finn/Rose is a weird one because even in TLJ it’s clearly a one-sided crush. I think the kiss was Rian tipping his hand a bit too much about the direction he wanted that to go in, and, honestly, as upsetting as Rose’s diminished role in TROS is, it’s not terribly odd that she and Finn aren’t together. Chemistry or not, their story in TLJ is not them falling in love.

Either way, the dumbest possible pairing is Rey/Poe. As if it wasn’t bad enough that they didn’t share the screen together until the final moments of TLJ, to shove them together as Trevorrow did, with the implication that they’ve been in love for awhile is supremely silly. It’s not the actors’ chemistry pushing the pairing, and it’s obviously not the preexisting story pushing the pairing - it’s just Trevorrow/Connelly/certain fans who want the two hot people to kiss because that’s what happens in movies.

As for Reylo, I’m not a shipping type of person, but I find it easy to see the ways in which them coming together romantically fits as a conclusion to both of their arcs. Regardless of whether they ended up together, I do think they were purposefully playing for romance in TLJ, and I felt like it was necessary for this to be acknowledged in some way in IX. Whether the way they did it was the right way to do it is another question.