Heartstrong

1. Having an emotionally strong and tough heart in a time of emotional trauma.
2. Having a stubborn heart that wants its way.

1. For all that Nova has been going through, she's been very heartstong.

2. They're so heartstrong, sometimes I just want to rip the bangs right off their faces.

Heartstrong by capkirk2003 August 11, 2016

Lyra Heartstrings

If you are reading this you are a brony and very bored.
You could be watching MLP.

Lyra heartstrings is best pony.

Lyra Heartstrings by widget master February 12, 2019

Headstrong 

A person, man or woman, who possesses inherent qualities of an unrelenting or unwaivering ideology, often baseless and of strong conviction.

Person 1: I told Johnny he was wrong about the Earth being flat, but he's too headstrong to listen to reason.
Person 2: Yeah, that guy's a dumbass.

Headstrong by 🐺 August 21, 2017

heartstrings 

(härt′striŋz′)

Deepest feelings or affections

Guy 1: That seriously hurts my heartstrings, dude.
Guy 2: *Blank Stare* Gay

heartstrings by Warden Kaine January 2, 2008

Lyra Heartstrings

Background character from My Little Pony: Friendship is Magic cartoon show. She is a mint green unicorn with golden lyre as her cutie mark.

Lyra Heartstrings' first appearance is in Friendship is Magic, part 1 in Canterlot, where she walks with Amethyst Star and waves to Twilight Sparkle.

Lyra Heartstrings by FalseLyra May 21, 2017

headstrong gunner 

an overly ambitious, competitive person who does what they want without listening to what others have to say.

Your life is no fun, you are a headstrong gunner.

headstrong gunner by benisntokay March 8, 2023

heartstone

A super hard gem created by intense and magical suffering during a lifetime of isolation.

That bitch is such a dragon she has heartstone in her lair.

heartstone by Child Dragonslayer September 24, 2013