I'm in an emotionally abusive relationship with my girlfriend. Honestly don't know how to get out of it without having any drama
How about you just stop communicating with her and let the relationship end on its own?
I would think its important to let her know how you feel. Communication is important to be in a relationship and also to end the relationship. If you ghost her and stop communication it might also haunt you and cause you to have negative feels to yourself.
Ending such a relationship will have its dramas but it would be better to deal with the drama once and be done with it rather than constantly facing the abuse