[Yarlick]

We don't usually get couples in Kamen Rider.
The one from Drive was one of the few where feelings were actually reciprocated.
This is why I don't think Sakura and Aguilera is a thing. It would be a very surprising leap where the Kamen Rider series is usually super tame.
With Riders it's usually not shoved into your face.

As for Tamaki, he is/was devoted to Aguilera and you see both characters caring for each other.
I mean, I thought we were going with that particular trope where each characters are in love with eachother but decide to be honest about it around the last 2 episodes of the series.