when the Black Fairy was revealed to be Rumple's mother I couldn't

hard enough, does every fricken character have to be related to him!?

So it wasnt Rumple after all who sped up Belle's pregnancy, but why didnt he tell her it wasn't him? Seems like dumb writing so they can set up Belle & Rump having to get together to rescue the baby, or for when they find out the baby's actually evil or Morpheus isnt actually their kid... I dunno, somethings really off about Morpheus. Anyway I have a feeling this is how they are going to redeem Rumple once again(until he needs to be bad again for story reasons that is, lol.)
I forget though, what is The Evil Queen referring to when she said Rumple needed her help in killing the one who killed his son...or something?
I didn't catch that either. I wonder if she knows something Rumple doesn't and we'll get a flashback.