This is my first experience dating someone with BPD. I care about him very much and want to support him best I can.  Recently he had a bad experience at work which ended up with him feeling incompetent and unappreciated. He doesn’t want to see anyone and told me that for the last three days he’s been drinking and smoking all day. He seems to have isolated himself in self destructive behaviors. How can I approach this situation in a productive way?