Why Would My Boss Treat Me This Way?

Any one have insight to a man/boss behavior towards an employee?

He has always acted weird towards me but lately he is being extra weird. He won’t talk to me or respond to my work emails. He keeps asking other people in the office things that only I know and even when they say ask me he won’t.

He usually will say good morning and good night to me coming in and leaving for the day but he ignores me now.

Today he left the conference room during my presentation.

I am always frustrated with his communication with me, it’s like he doesn’t want to approach me or talk to me. Sometimes when I force him to listen to me (always about work things, I don’t talk about personal things with him) he will trail off or walk away while I’m still talking and over all acts like he can’t wait to get away.

Nothing has happened that I’m aware of that he could be “mad” about. The only incident was he told me he had to run the dishwasher and it looked like it hadn’t been ran in a while, I said I was sorry it must have filled up quick this week. I was mad he mentioned that after how busy and swamped I had been with real work but I didn’t say that to him.

Is this some sort of man behavior that I don’t understand?

I thought about having a conversation with him, ask him if my performance is lacking or what could be going on.

What do you think this could mean?