Changes
Honestly, are there any romantic interests you'd like to fix? I can't really explain it, but change something about them. Like, maybe there aren't enough interactions, or that kind of thing.
Personally, I'd choose Takao from LOTW. I feel like there wasn't enough of him. Most of the options to improve your relationship with him aren't even romantic. They're just options that enhance the MC's magic.
And also Alek from WP. I haven't played his route because of this issue; in my opinion, he should be a casual love interest, since he only appears in the first season and as such, there's no ending with him.
And Hunger too. He appears way too late, and even then he shows up every two or three chapters. He's one of my favorites, but personally, I wish there were more of him.