Want recommendations that have optimistic-nihilist(? not sure if that's the right term) themes

What I mean by that is having a core theme of rejecting the idea of meaning having to be being validated and given by a grand mechanism that's 'above' us
The ideas of everything being meaningless since nothing lasts forever or the idea of soulmates and true love would be ideas would go against this for example

I think it'd be really cute to see the second explored especially since I hear the sentiment 'why are you interested in me I don't have any especially desirable traits' a lot and it'd be nice to hear it argued against but any that follows what I'm asking for would work