Mom Dates Again

My father passed away on 10th of January 2007 which would make it almost two years since he has left us. Last month (November) my mother started hanging out with a man that I knew. She started comforting him a few months prior when his wife died of cancer in June.

Last week mom came to me and said, "I have something to tell you." I knew that I was not going to like what she had to say. I knew by her tone. "Yeah?" I replied.
"Drew and I are officially dating now." she revealed.
"I figured as much"
"Do you have a problem with this?"
"I thought I did. Yes. Yes I do." I replied
She just looked at me waiting for me to continue.

I quickly thought of the nicest way of saying what I wanted to tell her. I said, "I'm not ready to see you with someone else." What I really wanted to say was..."Yes I have a fucking problem! Duh! Of course I do. What the hell do you think it is? Jesus Christ dad has not even been dead for two years! ...And this Drew fella, his wife just died 6 months ago! I don't know who's worse; you or him!?"

I'm disgusted with them. I'm angry at mom. I feel like she is a traitor.

I know all the other side of things already. I know that she has been lonely and I'm sure the same goes for him, but I honestly don't give a damn because I still think that it is wrong. Just because you don't have a significant other does not mean you cannot be happy and not feel lonely. I think it's bullshit and I'm clearly pissed.