WOW-A gitte voch.. A besser voch!
I can certainly empathize with u. even though BARUCH HASHEM my son is a better now..
I dont know what you told your son..
I would have said somthing to the effect that he makes me cry.. and not well but really sad.
please call Rabbi Weingort from shalom Rav in Zfas and see if your son wont benefit… 050 200 9820.
He will be out of your sight and might come home a better person.
Your son is definitely troubled about something maybe ask him calmly what is troubling him and apologize if you have to about the confrontation or argument you had a night or two ago..
Its just you are so hurt..
Kids dont like when their moms cry..
tell him you are on his side and youwant to help him..
and he will answer you- if you want to help me just leave me alone!
and you will tell him as long as you are his mother you cannot leave him alone and you care about him and where he is going..
and leave it at that.
HATZLACHA RABBA!