OKAY I'm once again gonna talk about my theory about how I don't think HW is the mother of all of FW Finn's kids.
The most obvious evidence being the fact that his children in pillow world have the same names and very similar appearance — Jay and Bonnie.
AND in the season finale when Huntress Wizard goes to farmworld, the redhead kid is the only one who calls her mom, and they ask her if she came back, and I feel like if she had died in this world then their reaction would've been different.
And the other kids don't have as much of a reaction as him, which, again, I feel like if they met their dead mother there would've been a bigger reaction.
My conclusions: FW Roselinen is the dead mother of the blonde kids, the redhead kid was either from a previous relationship or Finn cheated on Roselinen (which isn't really out of character to be honest), HW couldn't be around for whatever reason and left the kid with Finn, but she's still alive in that universe.
Plus, they reference the pillow world again when Fionna is entering Finn's mind, which I couldn't find an image of and I don't want to pull the episode again.
Could season 3 come and confirm that HW is FW Finn's dead wife? Yeah, but until then, that's what I believe in.
Edit: if you disagree please go make your own post about it instead of commenting under mine. The post is about how I think HW isn't the kids' mother, commenting all the reasons why I'm wrong and why HW is in fact their mother is literally the opposite of what the post is about :,)
