I guess it depends on how far back the differences between our universes go. If it's the way it looks in this case? Then yeah, I'd try.
Fundamentally, they're the same person. Obviously different events unfolded for us; maybe our first date was at a different restaurant, maybe we got together noticeably earlier or later in one than in the other. And the elephant in the room is that both of us have gone through the trauma of losing each other. But we've got the opportunity to undo that, in a very strange way, and I'd take it.
Imagine if you did go to a different restaurant for your first date. Imagine getting to hear the story of your first date, for the first time.