Love is........

Now after being a 22 yr old I think love is... a habit. Here I'm speaking about love between two 'soulmates'. Everybody have their own definitions or explanations but in the end all is zeroed down to 'one soul cannot live without his/her mate'. Now, here the catch is- one can't live without the other because he or she has become habitual to the other and vice versa. Some say its love at first sight ,etc but after being habitual to the other then only love starts.