What he should have said was, "I'm fed up with all the negative things J has to say, because its affectng me personally."
You know what I'm fed up with? People whining about others being "negative" when they're telling the truth. This is the same mindset that gets people to complain about "bad news" on tv, turning the newscasts into nothing more than celebrity gossip and kitten rescue stories. I'm sorry to break it to you, but there are negative things in the world. Talking about them is helpful; pretending they don't exist is unhealthy.