Most Helpful Guy
1) He was trying to guilt trip you (I call this: "Pulling on the heart strings" to keep you from forgetting about him)
2) He is sincere and it really did hurt him, but he is sincerely happy that you found someone that you are happy with.
3) Now that he sees you happy, he feels alone.
My guess -> He was being sincere. Why would a guy waste his time saying how it hurt him? If he was so focused on keeping you in his life, he would have been talking to you LONG before you had a guy of interest in your life (trying to keep your interacting with him, but just at enough length to where you both don't hook-up).. etc.. So, yeah.. My answer says that he was speaking from the heart and that he "is" hurting. You don't need to respond to him; if you DO feel the need to do so, just say: "Thank you" -> He can deal with his own pain, that's not your area anymore (seeing as you aren't currently dating him)
~ ArtistBBoy0THIS IS NOT RELEVANT ANYMORE