She discovered the woman was Priya, an adult-learning teacher who had helped Marcus learn to read after a construction accident ended his career. Marcus had hidden his limited literacy from his family out of embarrassment and had eventually become a teacher himself.
The lunches were actually being left for Walter, a homeless man, while Marcus kept the handwritten notes because they were among the first sentences he had learned to read independently. His mysterious trips were not evidence of betrayal but of a struggle he had carried privately for years.
That evening, Marcus finally told his family the truth. Elliot simply asked him to read a book aloud, and no one judged his difficulty. Marcus no longer had to hide his struggle, showing that real love allows people to reveal the parts of themselves they fear others will reject.