The song is about breaking from a relationship with a socio-/psychopath and/or narcissist.
Especially the first verse gives hints of that.
"You could never know what it's like" (What love is like)
"Your blood like winter freezes just like ice" (No sincere emotions)
"And there's a cold lonely light that shines from you" (Isolation)
"... behind that mask you use" (Not showing their true personality)
The song is about breaking from a relationship with a socio-/psychopath and/or narcissist.
Especially the first verse gives hints of that.
"You could never know what it's like" (What love is like) "Your blood like winter freezes just like ice" (No sincere emotions) "And there's a cold lonely light that shines from you" (Isolation) "... behind that mask you use" (Not showing their true personality)