Feeling unsure on my decision to leave

Because am leaving, I communicate with few colleagues that are working in different countries. Was chatting with Merisca that I found out things that i should have not know. She asked when will I be going over to Indonesia and i am pretty stunned. I asked why did she say so and she tell me about the CO project that Bryan have recommended to the Finance Manager in Indonesia and the FM in Indonesia is pretty interested to have me over. According to Merisca, Bryan have been speaking highly about me. Telling the FM there that I am very fast, organised and have ownership. That is when I feel bad. Knowing that he still do things for me despite him leaving Malaysia soon. I did not know what to say but I am touched to have a boss that look after me the way Bryan did. Despite me is just a small executive in his team, he look after me as in i mean something. Thanks Bryan.. for everything..