You can inflict extreme pain on someone by just talking without raising a finger nor your voice. Especially if this person cares about you.

It can be voluntary or not but dismissing it like that seems strange to me. It's not because it doesn't leave physical scars that it can't cause trauma.

"Stab the body and it heals, but injure the heart and the wound lasts a lifetime."

Proxy violence.

https://youtu.be/W0FByIEijXI?t=22