How about some relationship Hc's of Arrow with a male s/o who is much happier and tries to make her happy anyway he can
So I think that a lot of Arrow's self-worth is tied to her ability to protect her Pillar and contribute to the White Clad's cause. Because of this, she may struggle to be happy whenever she feels she's failed or disappointed them. With a Darling that's happier and always encouraging her, she may struggle to accept it at first. Like she would almost be upset that he's trying to make her feel a sense of pride in herself after screwing up a major mission.
That doesn't mean she'll always hate it, however. It'd take a while, but she would actually start to be less hard on herself when she fails because of how fervently her s/o supports her. Instead of immediately thinking she's a failure, she tries to find a way to "redeem" herself internally and strive to do better next time.
She isn't someone who smiles or laughs much, even when she's happy. It's kind of funny to the other White Clad when she and her s/o are seen together, just because they have such different vibes. He's always able to get a small smile out of her though, and she likes that she's getting used to feeling happy more and more often when she's around him.
I think she also views herself and the world in a very...utilitarian way. She has feelings, but they aren't useful to fulfilling a mission, so she simply doesn't express them. The only times she may be more expressive is around her s/o and around Sho, just because they're the closest people in her life that she trusts like that.
A small part of her feels sad at the thought of the world being cleansed with fire, but hopeful that she and ____ would meet in the afterlife/Adolla. If the world she shares with him is meant to be destroyed blessed in such a way, she hopes that her loyalty and piety would let her have that reward in the next life. Until then though, she wants to treasure the time she has with ____ in this world.
Is a bit of a kuudere when her cheerful s/o compliments her, especially on her archery/fire abilities. She'll be a little pink-cheeked and quietly say "thank you", but that'll be it. And if he's ever publicly affectionate with her, she's stammering as she chastises him for being so "brazen" and inappropriate. Still, she's not pushing him away either...
