She mentions that the future she saw may have changed, which (along with her saving the kid from the bike) implies that what her future sight shows isn't 100% fated to be. Now, I'm all for the main pairing, and I'm not about to say that she should've given a chance to the guys that wanted to date her to use her, but I do wonder if she might've turned down a confession at some point that could've led to a perfectly wonderful, happy relationship for her due to seeing an unfavorable future that could've been changed via actions taken based on her knowledge.
Like, what if she saw a future where they were stuck in a loveless marriage with each other, but the reason that future came about was because at some point they both stopped putting in the effort to maintain the relationship's health, which the future sight would allow them to address and resolve early on in the relationship?
Again, I'm all for the planned relationship, I just wonder if she hasn't maybe over-relied on her powers.