So far, in Season 1 of Being a DIK, the Relationship Points (RP) haven't played any role unlocking certain paths or closing others (only DIK/CHICK status), will they become more relevant in the near future (Season 2 or Season 3 if planned)
I removed the visibility of the RP because I saw players playing the game to get as high of a score as possible with the girls. It became a hunt for stats and that was a big warning sign, since that's not at all what I wanted this game to be.
I want the game to be about choices and how a sum of choices, as well as key choices, can come together and affect the journey. The best example of this so far is in episode 3 where Isabella evaluates you and for the moment makes up her mind about you as a person. It wasn't a single choice that caused her to say that you're good or bad for Jill, it was a sum of your actions, where some of your choices mattered more than others.
The RP in the game so far have been used two times, during the visit to The Pink Rose in episode 3, where the RP with the DIKs alter Tommy's response and also in episode 3 how Maya's lewd scene is extended if she likes you.
I use and will use the RP to customize and give flavor to the journey and these points may be used in bigger forks along the road, but overall it's your personality and actions that will matter the most in the game. That's why I recommend everyone to have a main save where they follow their heart in their choices and don't get hung up on score hunting. Getting 100% RP with a girl may not matter depending on your other choices.