I don't know you, don't know your sponsor and I don't know your history so I can't in good conscience comment on whether he was on good grounds or not. I've heard some pretty odd sounding things come out of ppl's mouths that really had me wanting to say "that's crap!" As I learned the whole story behind it, my opinion changed.
That said though, it seems like the whole thing is upsetting you and, as I'm sure you've heard in the meetings you've been to, "ALL our troubles are of our own making." So, if the experience with your sponsor is upsetting you......it's a resentment.......and we've got a 4th step to deal with it.
For more insight on whether your sponsor is on solid ground or not, how you're working the program, what he or you could/should take a look at and how to approach it, you may want to post up in the 12Step section.
