Congratulations, mismck, and sone as well.
Now that's a revelation, about the first kiss. I never thought to try that.
Personally, I completely forgot clubs existed for this challenge.
Instead I built my first couple a tiny home for the relationship gains, with Romantic and Convivial lot traits and Wild foxes (that one isn't strategy, just a reference).
Every subsequent couple traveled there to build their relationship, which meant that their green and pink bar were full very fast.