posted November 06, 2010 02:23 AM
Probably.Did you not want him to leave??
Another thing I've noticed in dreams is that we seem to 'replay' recent themes over and over, for a certain time, and then they dwindle away.
For ex. After I quit my job three weeks ago, for about two weeks straight I dreamt of my boss, whom I didn't like at all, but I think it was sort of a brain detoxing thing for me, a cleansing if you will.
When it's someone we care for, it's like we hold on to them any way we can, and by having that image so strong in our minds, our brains, understandably, churn out those images for us while we sleep. 
*and also, there is that possibiltiy that he is thinking of you as well, so you two are 'communicating' if you will with your subconscious minds.