So the ghost tried to kill herself with him in the car?

Yes. It’s the fact that she did not love him while they were dating. Toxic codependency & her motive was to use him & his shaman bkg/heritage to hex & cast spells on people she hated (prolly cause she’s a outcast & didn’t fit in like she wanted or shes insecure socially). I feel bad for Taemin cause he was bonding or dating with her out of loneliness & felt like she had his best interests. She didn’t.

Damn, I missed a chapter, now I get why I didn't understand what was going on