Lie to me again, once, twice, or thrice
Hurt me again, because I got used to it
That I'll act like I forgot you
Like I got over it
Or: Like I'm over it (the fact that you hurt me / the relationship)
Break my heart without sense and reason
Even if you know that I suffer in my room
Because I'll pretend that it didn't hurt
Because in reality you don't know that it hurts
Or: Because you don't really know how much it hurts