One of my clients, who is a green card holder, was sent to secondary inspection upon re-entry. They questioned him extensively about his VAWA case, particularly focusing on the dates of abuse he mentioned in his affidavit. Be prepared to answer detailed questions if you're in a similar situation. Carry a copy of your I-360 approval notice. If the officer asks about the abuse, you can say, " I’m glad to answer your questions, but some of this involves protected information related to my VAWA case. I’d prefer to speak with a supervisor regarding this matter," or just answer the questions; it's up to you.