It's "LOVE" NOT "LIKE"
Most Helpful Guy
A drunk kiss changed everything or you have had those feelings from beginning but didn't fueled it because your best friend had a girl friend. Now that your best friend is single, you need to pursue that and find out you are not much in love with your boy friend. It is very confusing.
Don't make it so confusing. Take out your best friend from the equation and tell whether you still want to break up with your boyfriend. Take one step at a time, even when you are trying to conclude something.
Most Helpful Girl
Follow your heart but take your brain with you.