My ExABF would use the bathroom on himself when he would go on a binge. He did it twice with me and honestly it broke my heart to see someone so addicted to something that they would pee on themself. I was actually in shock. & he would pick fights w me too. But I wouldn't back down. I would constantly try to talk it out when in reality it made it worse.
I don't think going to AlAnon or finding a support group is a bad thing! Focus on you right now. You have a right to be selfish honestly. That's what I had to do to focus on me.