<human>: Can you condense the text into three sentences or less?

My BF has recently been telling me how he hates my best friend. It's making me question our relationship as I have always put my friends first before any boyfriend. 
The first time he said anything was a about a month ago, and out of nowhere he says "just so you know I really don't like Stacey" I didn't say anything then because it was late and I didn't really want to talk about it. 

He then brought it up again in the same context, late at night just out of the blue. I finally asked him why. He says it's because this one time when we were all at my place playing games and drinking she told him to sit like a dog. Later that night our other friend twisted her ankle, Stacey told my BF to go get ice (apparently in a rude tone of voice). I guess he thought those two interactions were very rude. This is the only two instances he can give me as to why he doesn't like her. 

The last time in which he brought it up and just put me over the edge is we were at my place and he was telling my roommate, who is also another one of my best friends, how he hated Stacey. My roommate didn't really say anything. 
I told my BF to stop and to come talk to me. He said the same things as I described above as why he didn't like her. I can't find any justice in those things so he ended the conversation with "I guess I know where you side" Like I'm choosing between her and him. 

I know that he's not going to get along with all of my friends but he doesn't have to say it, especially to my other best friend. I would never tell him that I didn't like one of his, I just deal with it. 

Now my roommate thinks he's a complete douchebag. 
I feel like I just don't want anything to do with him anymore knowing that anytime well be around Stacey, which is often, he hates her.
<bot>: My BF told me and my roommate/best friend that he hates my other best friend, Stacey, over two small interactions. Now I feel like I don't want to continue our relationship.