It has been a long time since I read this book, back in my youth, but it seemed to make a lot of sense then, but I can't remember everything, so there may be some info that is not Catholic, but it kind of got me thinking straight on what love should be.
I've wanted to return to it, but have never gotten the time, but it has much to say about this problem
Love in the Western World, by Denis De Rougemont.
Very detailed information on how romantic love took the the place of more traditional types of love.