I don't believe love is anything near objective. Therefore, I believe it's no more than a delusion. A lot of delusion can make people feel happy, like religion. Like a Space daddy watches over you all the time and make sure everytime you pull an napkin, another one will pop out right under it. But the rational and sophiscated ones of us human tend to part reality from delusion. It's a gift of evolution that those individuals without the ability to distinguish fantasy with reality will be eliminated, it's also a curse, as most of us can see quite clearly how harsh reality is. Some get along, some don't, so they may choose to escape the reality temporarily, like intoxicating themselves. What's the last time someone ask you do you love someone? Shouldn't be later than college. If someone ask you do you love your wife, you will find it offensive, and you will ask him/her where he/she is getting at. And deep inside, you are saying "What a stupid question, what does that even mean, my wife and I get along, and we just get along..." Love is chemical, love is a feeling, it's a delusion. If I were a sales manager, and I want to recruit a new, fresh outta school salesman, I'd love to ask him this question: do you believe there is a thing called love? If he/she answers yes, then bam! He/she is out of the question, too young to this world, kid, sorry. And in case someone else ask me "then why do you stay married?" after this tirade, I'll tell him/her "Because divorce is damn expensive! And we really, really get along just fine..."