I'm in an abusive relationship with my cousin
Why would you be with your cousin? Are you safe?
No, I'm in love with him and he has manipulated me to stay.
You shouldn't be in an incestual relationship with your cousin especially if it is abusive. Those are 2 red flags in a relationship and you should probably end it.
I agree but I love him.
You really need to end this relationship. You both could be in trouble for incest and you deserve to have a healthy relationship where you feel safe.