Yes, AJ was Grace's son.
Clarifying AJ's Family Ties
Contrary to a prevalent theory that suggested AJ's "deep, dark secret" was his lack of biological relation to Grace, this speculation was ultimately untrue. It was a common misconception among some, but it wasn't close to the reality of his parentage. This confirms that AJ was indeed Grace's son, and his personal struggles or secrets stemmed from other undisclosed issues, not from his lineage.
