Well..if this is how he is going to react when he gets mad and you actually do something for yourself, then I would proceed. If he is truly working a program, is willing to do the work on himself to make sure he does not continue to relapse, maybe hold off. None of us can tell you what to do without seeing for ourselves how genuine he is about his own recovery. Relapse is always a factor. It's always possible, even after years of sobriety. It depends on if you can live with that risk. For myself, it was too much to know we could go down that road again. I could not live with that sort of pain again.
Just my .02 friend. I am sorry this has happened. Hugs.