he put you and your son in a really bad situation. And now you have the choice to sink or swim. I will bet my life that you are a 'swimmer'. Pick one thing that is most important and work on that.
You will get thru this because you are a strong lady.
Addicts with subs - will continue to use. Often the subs are sold for heroin. Masters of manipulation - they fool everyone. The lies cover it all up and they gaslight their loved ones in order to continue using freely.
We've all been hurt this way. Don't take it personally, even though that's a tough thing to accept. It's their nature. A necessary script.
I will be praying for you ... asking for strength so that you can sort and get thru this, one day at a time. I am so sorry this has happened to you.