L.G.
This is really hard on the mother. It's your son. He needs to get to know his father.
My daughters tried living with their father at different times. The older one returned after a month telling me how overbearing he was. He paced the porch if her bus was late or if it took her more time than anticipated at the orthodontist.
My second one got fed up with all the rules after a summer with him. She used her own money to take the overnight train home.
Boys do have a stronger need to find out who their Dad is since they are trying to become men.
One of my friends with great sorrow let one son then the other go. They are close to her to this day. Both were 16 when they left.
Let's get some perspective on this. When my grandfather came to America on his own he was only 17 but society did not have this extended view of childhood back then.
Build a life for yourself. Even if you have other children at home take a course in something you always wanted to know about. How to make U Tube videos or learn another language. Fill up your time. Invite friends for dinner on Tuesday. They'll leave by 10pm due to work the next day and you will have had an interesting evening.