It's ambiguous enough that everyone can head cannon their own ending to the tale, I hate cop out endings like that, choose a route and stick with it (or write multiple routes)
It was set ambiguously over 100 years later and he was already middle aged, him dying isn't surprising, the question is did she have kids with him or maybe she found someone else, there is a kid that looks almost exactly like her in the foreground so I think it's safe to assume that's at least her grandkid so it's possible she found someone else, potentially his own kid with another woman after he rebuffed her advances like