He doesn't want to talk to you period, or he doesn't want to talk to you about your career/job situation?
If he doesn't want to talk oto you at all, that concerns me. I really don't know what to say about that...
As your partner, he should encourage you and be there for you when times get tough. Try to convey to him how hurt you are that he isn't backing you up in this rough patch. Also, work on not talking about your job when you get home. Maybe the stress you feel at work is rubbing off on him- try to make your house a getaway from work.