Personally, I saw Sparkler as a friend of Derpy and her with Dinky at the Sisterhoof Social as the former being like a big sis to latter and going with her for a good time.
just look at it this way, either derpy's husband looked similar to sparkler (how dinky is a unicorn), or that sparkler was adopted.......simple enough. (and i do like jam on toast, and buttery garlic bread; honey-butter if a dinner roll)
I'm sorry, but this is unintentionally hilarious.
See, I work with this group that does an audio drama called "Doctor Whooves Adventures." And the guy who plays the Doctor's voice?
His online name is 'The Jamjar.'
And I've listened to some episodes of that drama - it's really interesting!
Call G1, SomePony needs to go Identity-Stealer Bashing.
Also, do I detect a Jamjar joke?