Romantized Abuse...

Is it can only be applied on sexual violence? Or is it possible on "normal" violence?

Romanticized Abuse. If you're talking about a trope, please include a link to said trope.

Short answer is that the abuse doesn't need to be sexual.

Something that's romanticised is something that's painted with rose tinted colours, which has a fairly wide application. The trope description isn't particularly clear about exactly how wide the trope is, though, or whether it's using a phrase for its name that in common use has a wider meaning than the trope includes. However, saying it's just sexual is a too narrow for what's described, and what it claims are its subtropes.

Oops, sorry didn't know that I'll do it next time & thanks