Persona 5 (played vanilla and not royal yet), really wished to not pair Ren with anyone.
His first meeting with Ann though, he can't stop gazing at her for a while. Plus the music that played only once, at that scene only.
And while they have different personality, they are also both outsiders when they first met, IMO
And yes, there's also Makoto and Kasumi that has been pushed more, but still...