Got an email rejection on a partial today. I sent it back in March. The response time was supposed to be 6-12 weeks, so I had already written it off as a rejection a long time ago.
The message was quite generic- story sounds interesting, just not right for them at this time. Does it bother me? Well, nobody likes to hear that their baby's been rejected, but no it doesn't really bother me.
I have faith and confidence in this story. Maybe the next response will be a "YES!" And if not, I know it will end up where it's supposed to be.