gachikoi - Being so obsessed with an idol that you think they're your s

Being so obsessed with an idol that you think they're your soulmate and you're gonna die if they ever break up with their group.

I'm gachikoi. I cried when he changed his hair color.

I told my mom I'm gonna marry him. I'm gachikoi.

I bought 100 CDs just because. I'm gachikoi.