In last 15 years I have had nine jobs. Most places I worked they loved me and tried to keep me as long as possible. I have former bosses and colleagues who regularly stay in touch. However, in two of those jobs I just couldn't seem to do anything right and the culture made me really uncomfortable. One manager really disliked me. I guess 2 out of nine isn't bad. Both times the boss was pretty narcissistic and it drove me crazy. How often have you had a job misfit?
Nine jobs in 15 years? Wow. I don't see how you can conclude that they loved you or tried to keep you.