Spooooooooiiiiiiiiilllllleeerrrs! Spoilers spoilers, spoilers!

My headcanon is that Kana’s parents didn’t approve of her going out with Shinichi, and on a certain fateful night, she and her parents had an argument that ended with Kana’s parents grounding her and Kana screaming that she hated them before running away to find Shinichi. That night….was the very same night that Kana ignores Shinichi's warning against trying to detect and follow him using her "power," since in her infatuation she's convinced herself that she'll be able to tell the difference between the aura of Shinichi and another Parasyte, but she can't, and when she walks in on a hostile Parasyte instead of Shinichi…you know what happens next.

How could Kana’s parents (whether they don’t learn of their daughter’s fate or 8& Shinichi tells them) deal with all that?