Prez seems to be extremely possessive. I’d look over it if it weren’t for the fact that that aren’t in a relationship. Also I got a feeling that she got her powers after she initially confessed to him and he rejected her. Hope that’s actually what happened.
Bruh Mangaka could have just made it so she simply had no interest in MC in the first place. There's no need to further make your character freaking gæy out of no where just to justify that.
That's not really what people are upset about. The problem is that Takamine hasn't really grown as a character as of yet, or at the very least, she hasn't grown nearly enough to even be considered as somewhat likable to many. I think a lot of people want to support the romance, but Takamine herself is way too toxic.
Having a love rival, one that seriously gave her competition and forced her to change into a better person, was one of the best ways to really remedy that. But now, there's no way in hell that she's a rival anymore. In like 95% of other romcom manga, this would be an extremely welcome twist, as love rivals tend to only prolong and complicate things (and yuri representation), but this is one of the 5% that would've actually benefitted from this.