Somewhere, I know you feel down about the call, but, honestly, it does not sound like it went badly. Bart was downbeat, you tried to help his mood, he resisted.
That, to me, sounds like a normal discourse between a person going through a rough time and another person trying to make them feel better.
Honestly, and I read the conversation through 2X.
Please do not feel badly about it.
Wait for him to call and hopefully, he will be in much better spirits. It won't be long before he feels much better. That better feeling has to come from within him; there is nothing you can do to control how he feels. And, he doesn't seem to feel really, really, bad....just a bit spent/tired/down.....what might be expected.
SS