A simple question...

I would really appreciate it if everyone here would answer this. It is a topic that has been on my mind for a while. I just finished reading a really good article on I Corinthians 13 and on several other places in the Bible where we are commanded to love, so this topic sprung up in my head once again.

So, here's the Question:
Is it possible to love someone even if you don't like them? And, if not, what can one do to develop a "like" for a person, then to develop a "love" for that person?