Other than sex what is the value of so-called "love" to Evolutionary biologists? What's it good for?

I'd like to get some cool, intelligent perspectives on the value of love from an evolutionary point of view. I put this question under "social science" since I think it's the ultimate example of a social science, but one you don't see often written about outside of the field of evolutionary psychology. I understand it's not politically, socially, or certainly religiously correct to be speaking of these things. I'm especially interested in the value of love as it relates to "inspiration" (for example what's the value of "inspiration" outside of religion and spirituality), "bondedness" and "access to resources" that favor survival (for the man, the woman and the child). However, there may be other cool, related perspectives besides those three. For this question, I am not at all interested in the traditional sense of "gooey" love 99.999% of people refer to. We all know what that is (or think we know). I'm interested in the evolutionary value of so-called love in "meaningful relationships". I'm also not interested in any semantic differences between crush/love/like etc. More the value of "love" as it relates to the survival of ones genes. Thanks for your perspectives. I'm looking for something closely-related to the above but maybe a perspective I haven't seen/heard yet. No bible thumpers here. See religious forum instead for your divine intervention.