Phases of love as I've come to understand them, so far.

Phase One: Atopy
An allergic hypersensitivity affecting parts of the body after coming into contact or being in close proximity with the allergen. Most often the stomach will churn and the throat will dry up. Additionally the brain will operate less efficiently causing stuttering and a general stupidity in conversation.

Phase Two: Aversion Therapy
A series of mildly uncomfortable encounters in which you'll either become immune to the allergen or proceed to Phase Three.

Phase Three: "Love".
In films, the moment "love" first presents itself occurs just before the plot tips into the denouement, or possibly the credit roll. Characters most often make this discovery as their plane begins to screech along the runway towards Paris, or as their bus careens out of control. In real life, peril usually does not play a part in this discovery, although it can often occur as quickly. "Love" is discovered on coffee cups when you see a potential lover's lipstick makes form a perfect heart over the rim. It's tangled in their hair as they attempt to cling to the last moments before morning. It's found simultaneously with discovery of the meaning to love songs you've always found cheesy and redundant.

Phase Four: Panic.

Phase Five: Breakfast.
Scrambled eggs and coffee. Possibly some kind of fruit.

It should be noted that I believe there is more to this, and I'm currently conducting the necessary research.