Part 1: Declaration of rivalry or something else?

After what Subaru said to her Yume is conflicted. Is he simply just re-declaring his rivalry or is it something else with a deeper meaning? After clearing up the misunderstanding they start going out but can both of them clear the obstacles put out in front of them and reach the goal(marriage ?) or will they both be defeated(break up?)

I don't own any of the pictures or characters just the plot and OC's

Book 1 of the Love Series.