I don't know how people viewed love and relationships in the previous centuries. I can only speak of how it is now and in the last few years.
Almost all people think that love and relationships are all about that butterflies-in-the-stomach-and-everything-turns-to-fairywonderland. A person will think their partner is the most perfect thing in the world. Everything around him/ her blooms with roses and lillies and everything else seems so much better. He/ she wants to constantly be around their partner and bask in their presence. I'm not sure if I'm making sense with my description but basically one is in such a state of euphoria that he/she may be blinded by this phase. It's perfectly natural for two lovers to be in this phase initially.
