Sorry about your aunt's passing. ((hugs))
Second, percocet is oxycodone and acetaminophen (tylenol). So badically it is oxy, so he is splitting hairs with that distinction.
Third, good for you, give him back to his family. Block his texts if you can. My stress was so relieved when i didnt have his texts interrupting my day with whatever came along with that. Be strong FL and keep stepping forward for you and your kids. You are fortunate in one respect because you understand the law, an area that frustrates me as i feel i am constantly semi in the dark about what my rights are and what will happen. You are a good mom and a caring person. You did all you could to keep your family together, you tried very hard and gave many chances. Let that truth give you peace when the doubts come creeping back.