Equally sweet and heart wrenching as the first… but maybe a little more of the second? That it’s him this time around and not her doesn’t make things easier or more new. That what she’s experiencing is not the same thing he’s feeling makes the story started in TBU a more complete one:
The way she’s always waiting, you don’t expect the same thing for him… but he is: waiting as well, and worse; the temporary nature of things for things on his end of the time line. And how despite the two of them being in a relationship, they aren’t at all equally situated; so that there are two things going on simultaneously here: her waiting, him moving: sad… obviously, and the romance of it all as well so big, but the fact is his experience of who they are is equally as heart wrenching as things were for her in the first because she’s not just the girl for him, she’s the one in the past… yet, what about in the meantime?
Then all that’s further complicated with family : who his father wants him to be versus what his mother wants for all of them.. plus all those questions of what if’s.” So, it’s not just a love story, it’s not just her and him; mainly it’s him working through the consequences of what he can for himself and others (not just her.)