I am not talking about the length of the relationship but the character's personality. Patty Spivot = quirky, nerdy, "cool girlfriend" who worships at the altar of the hero/heroine while the Pilot love interest is unavailable.
I am not invested in any character but this upsets me because it seems like they are self-sabotaging with Sophie. Taking their time with their Pilot OTP is perfectly fine. Using the obstacles that they put in there ( a marriage, a secret, whatever ) as an excuse to sideline the couple and focus on a fan service-type character and her romance with the lead is not.
I am afraid that this is going to end up like a Patty/Barry situation where all the focus is on them while the Pilot love interest disappears from the show. I look forward to being proven wrong.
The only Pilot love interest who wasn't replaced is Iris. James was replaced. The Hawks were written off the show altogether. Outside of the Arrowverse, Gotham replaced its Pilot love interest. The circumstances may vary but Laurel seems to be the rule and Iris the exception. If this new character is successful, Sophie will be in real danger.