Someone posted on Facebook the other day the following quote "The difference between lust, like and love is the same as that between 'for now', 'for a while' and 'forever'". While I think this is very romantic and awarded no less than an "awwwww" the moment I read it, I have my doubts as to whether one can put such feelings in a hierarchy as if one was a consequence of the other.
I think of 'liking' someone as that feeling of attraction in which you want to know more about the other person, you are interested in learning the way they think, sharing the things they like and, generally, just being with that person; lust is when you find someone you have good 'chemistry' with and all you want is to get in that person's pants to enjoy the pleasures of the physical realm; and, finally, I believe that love is creation, when you want to be with someone in order to create something extraordinary - when you know you admire something in the other person and they see something worthy of being admired in you as well. I believe that love transcends the union of the two and becomes something bigger than both of them together - be it a child, a project or just the creation of a new life.
Some time ago, I remember reading an extract from Octavio Paz's "El laberinto de la soledad" ("The labyrinth of solitude) where he discussed this topic with some interesting insights. In the mexican culture (as, I think, in many others) the difference between 'love' and 'lust' is normally related to the dichotomy between seeing a woman as a prostitute or as a mother. Whilst the former can be seen as an object of pure sexual desire and someone with whom you can enjoy your deepest and darkest erotic fantasies (with no remorse or fear of judgment), the latter represents a completely opposite set of values and morals which get in the way of the previously listed ideas - mind you, I don't mean your 'own' mother, but once that person has your child, they immediately are recognized more as a mum than as a wife.
In other words, when you meet someone you feel attracted to, it is normal to have your libido at its peak, finding it easy to explore and enjoy each other's company and body. However, when the relationship takes a step forward and the individual's role evolves into a more 'nurturing' and 'caring' companion-type, it is hard for both concepts to co-exist.
Of course, this is not always true, there are couples where their sex life evolves at the same pace as their companion-role and it becomes an experience of deep connection and intimacy... Though I find it hard to believe that most people are able to keep that flame of the unexpected curiosity alive. It is said that there comes a point where, either subconsciously or not, one starts to think of the spouse, partner, boyfriend, girlfriend, etc. as 'family'... And one doesn't fuck one's family, right?
These are just some ideas I find quite interesting since they can be the root of a lot of relationships which feel like their interaction is changing and cannot seem to figure out how.