Their romantic relationship in TFA gives me the vibes of “predatory guy eventually may weaken female until she falls for him” but she resists and kicks his ass, while at the same time maybe “protesting too much.”
In TLJ Rey’s passionate hatred gives way to compassion and a naïve sense of being able to fix him while Kylo feels like he can pursue his deep, needy desires for her through manipulation. They each make themselves vulnerable to the other before Rey rejects his hand.
In TROS they each redouble their outer shells to protect their vulnerability and feelings for the other, fighting and fighting until they eventually give in.
Meanwhile Finn keeps hitting his head against a brick wall with Rey, pushing Rose away in the process. Rose decides to barely exist after this, and another random girl gets Finn on the rebound.