>>50242884
I don't think Parsee could ever really be happy in a relationship. It's not like she can just decide to stop being jealous or anything, and the constant anxiety, anger and sadness would eventually boil over. Sure, she can function well enough normally, but being with someone would amplify her jealousy a hundredfold, if not more, especially if her backstory aligns with the hashihime myth.
Kokoro just wouldn't be able to handle it imo. She's already barely keeping a lid on her emotions as is, and if losing a mask was enough to make her zombify the entire village, I have no idea what she might do if she found somethhing even more important to her.