Well a pure materialism view of love is that is it a chemical reaction only for procreation or evolution relative purposes that will come to an end along with evolution. In fact its end will be infinite and certainly outweigh the time it existed if indeed anything can exist and come to an end to an infinite degree. Or, can something that is infinitely non-existing ever have a history? To put it another way!
My view is that things that exist don’t come to a complete end, in that some part of them always has to exist thus avoiding this logical paradox. It’s like the idea of a soul that seems to be applied to people or sometimes animals, but being applied to everything. As if the universe and everything in it has a soul. I guess I think it’s a bit like mathematics. All numbers have their negative counterparts. 1 has -1 and so on. No one ever saw a minus physical object though, despite the fact that the universe is most accurately described by mathematics than anything else. There seems to be a nonphysical counterpart to the universe that that gives it cohesion yet both are parts of each other and when one goes the other continues. In practical terms and if I am right, there is room for hope and for love to not die.