These are my headcanons for Blaze! This is basically also gonna be my au!

Headcanon 1: Blaze is a BIG cuddle bug......she just doesn't want anyone to know since she's a "princess" and has to keep up her royal "Reputation" and all.....plus she purrs if someone pets her.....

Headcanon 2: Blaze is scared of cucumbers......when she was younger her dad pulled a prank and laid a cucumber next to her and she jumped so high she clung onto the ceiling and wouldn't come down for 2 days....she ignored her dad for a week after that....

Headcanon 3: She likes Silver but is scared to tell him since her parents want her to be with another "royal" yet she just wants a normal life.....her mom supports this but her dad isn't so happy about it.....but he'll approve after a talk with her mom.....

Headcanon 4: she hates high places so she'll cling to whoever is closest and won't let go until she's on lower ground.....

Headcanon 5: She has anger issues and whenever she's mad the gem on her head will glow which warns everyone to stay away or they will get burned.....the only way to calm her down is petting her on the head.....

Headcanon 6: Blaze LOVES spicy foods and can tolerate them.....she can eat any type of pepper or hot sauce or hot/spicy food and her eyes won't water and she doesn't drink anything with it......but she likes drinking milk......

Headcanon 7: I feel like if Blaze had to go back to the Sol Dimension (for royal duties) that Silver would have a plush (that looks like Blaze, that Blaze had made for him) that he would hold since he would miss her while she's gone and that Silver would call Blaze every night while she's in the Sol dimension to check up on her....... (I feel like this headcanon would also be for Silver)

Headcanon 8: Growing up Blaze's parents never gave her affection like hugs and things like that so she's not used to it, until she met Silver of course, and she eventually got used to him RaNdOmLy hugging her (he would randomly hug her out of nowhere and no one can change my mind, it's cute) she also learned to love his hugs and cuddles (plus the chest floof would make a great pillow-)

Headcanon 9: She usually ends up bringing any paperwork that she has to do in the Sol Dimension with her to Mobius to get it done so she doesn't forget, which usually results in her forgetting to sleep but she hides it. She doesn't want to worry anyone, especially Silver, since she doesn't want people to treat her like a child.

Headcanon 10: Blaze was told different things from her parents about what love is. Her father told her to not trust men unless they're royalty (because he thinks non royal guys are all gold diggers) and that someone who's not royalty would use her for her money and status and break her heart (she doesn't believe it since she trusts Silver more than anything and believes he wouldn't do that). Her mother taught her that as long as the person she loves, loves her back for who she is then she'll be happy, her mom didn't care if the boy she ends up with is royalty as long as her daughter is happy. (Her parents have different views and Blaze trusted her mom's advice more, and she still has even after her and Silver got together, yet she's still incredibly nervous to introduce him to her parents, one because her father is a king and can be intimidating and scary, two, she thinks her dad will try to split them up because he's not royalty and might try to force her to date a snobby Prince (Prince James, I made him up for a roleplay)

Headcanon 11: She loves to sing but is shy to sing in front of other people and is self-conscious of her singing voice so she normally sings when she's by herself, a song she would sing is Unbreakable by Faydee, listen to it to see why, also Girl on Fire because it fits her perfectly.

Headcanon 12: She's not used to being complimented since she's never been in a relationship before she started dating Silver so when he first complimented her she curled up into a ball and refused to come out until she WASN'T blushing anymore.

Headcanon 13: she ONLY gets mad or angry when someone hurts her friends or family (yes this includes her parents and sister, Cyra even if she and her sister don't get along very well she still cares about her, although she'll NEVER admit it-) so if you hurt Silver, her friends, her sister or her parents, you probably wouldn't be able to walk away without a few burnt fur patches.....also she'll only ever cuss if she's like, REALLY pissed off.....again it's only if you hurt people close and special to her.....she's VERY protective of her loved ones.....she just doesn't show it since she is a princess, yet it shows around her friends....

Headcanon 14: she has never been to the doctor so if she were to get sick, she would hide and refuse to visit the doctor since she doesn't trust them (because she doesn't know anything about them, since in my au there's no doctors in the Sol Dimension) so I feel like whoever takes her to the doctor would have to deal with her being stubborn.....either Silver or Amy......Silver because he could just use his powers and Amy because she's just very strong and could probably drag her all the way there-

Headcanon 15: Since she likes doing ballet, she incorporates it into her fighting, so she's able to dodge punches/kicks from her enemies and it helps since she's flexible and she does yoga and ballet in her free time, she even teaches Rouge and Amy some of her moves so they can use them, which is helpful for them as well, it also helps them to stay active.

Headcanon 16: When Blaze sneezes it sounds like a kitten, so when silver hears it he thinks there's a kitten nearby until he realizes it's Blaze, she doesn't think much of her sneezes but I think Silver would find them adorable lol, also she yawns like a cat too, and when she wakes up from a nap she stretches like a cat

(This is all for now but I'll add more if I come up with anymore)