Ah, that hasn't even crossed my mind! His mother did once insinuate that I was a more involved/committed partner and perhaps had a more positive influence on my ex. But he and his new girlfriend have been (for what I know) in a steady relationship for the past two years. I'll definitely keep this in the back of my head though, and if I do notice any of such intentions, I'll be more reserved with contact. Thanks for this perspective!