I didn’t think much of it until I hit my seventies. You start looking back more than you look forward when you get to my age. One afternoon, I was cleaning out an old junk drawer in the kitchen and I found a photograph.

It was David at twelve, sitting on the porch steps with his arm draped over a little brown dog with lopsided ears. I had completely forgotten that photo existed. I sat there on the kitchen floor for a long time, just staring at it.

My brain started clicking through the years. I realized I had never seen him show any interest in an animal. He would visit, and if a friend brought a dog over, David would be polite, but he would never touch it. He would just stand there and watch from across the room. It hit me like a physical blow. He wasn’t avoiding pets because he didn’t like them. He was avoiding the pain of losing one. He was still waiting for the other shoe to drop, just like he did that day at the shelter.

I felt sick to my stomach. I had spent forty years thinking I had been a responsible parent, but I had just been a selfish one. I had traded his happiness for a clean rug and a pack of cigarettes. I decided then and there that I had to do something, even if it was decades too late. I couldn’t fix the past, but I wanted him to know that I understood what I had done.

Last month, I went to the hardware store and bought a leather dog collar. It was high quality, the kind that lasts a lifetime. I also went to the local animal shelter and made a large donation in his name.

I felt like a nervous teenager when I finally sat down to write the letter. I tore up five different drafts because nothing sounded right. I didn’t want to make excuses. I just wanted to tell the truth.

I finally kept it simple. I wrote about the day at the grocery store. I admitted that I lied about the money. I told him that I was sorry for being the kind of mother who valued a quiet house over his joy. I put the receipt for the donation inside the envelope, wrapped the collar around the letter, and mailed it off. I didn’t ask for a reply. I didn’t think I deserved one.

Two weeks went by. I didn’t sleep much. I kept checking the mailbox every single morning, half-expecting a furious phone call or just total, crushing silence. Then, on a Tuesday, a small package arrived. My hands were shaking so hard I could barely open the tape. Inside was a framed photo. It was the same one from the junk drawer, but he had had it restored.

There was a short note tucked behind the glass. It only had one sentence, written in his neat, adult handwriting.