My ex left me about a month ago right before our two years after being best mates for 8 years and... April 18 2014

Q: My ex left me about a month ago right before our two years after being best mates for 8 years and started dating some girl straight away. I think I'm starting to like someone else who makes me smile and laugh everytime we talk. Should I be feeling guilty and is this wrong for me to be feeling like this towards someone else?

each relationship develops differently, if you like someone, go for it