I feel awful for what I've done

My husband died when our son was 2. Since then it's always just been us. I never dated again or remarried. My baby was diagnosed with autism at 6. He's 16 now and still played with toys. His toys were a coping skill for him. They made him feel better if he was stressed. He got a girlfriend last month... And I didn't like it... I felt like I was losing my baby. So I told him he's either too old for toys or too young for a girlfriend. Either the toys go or the girlfriend.... I was surprised he chose his toys but he was obviously upset about it. I made him throw out his stuffed animals too. I understand they were his coping skill and I let my jealousy get to me and hurt my son by making him throw out things he cared about...