Is NOBODY wrong in the post ? POST : We've been together almost 2 years.

Recently a long term male friend of my gf started working with her.  They've known each other for about 4 years and have no physical or emotional past beyond a solid friendship.  He's hung out around our place and joined us for  whatever activities our group is into.  Last week they were talking about relationships when he said somethings to her along the lines of;

"I only go after trophy girls."
"I stole a girl from a friend once."
"I could've stole you from *insert her ex's name* if I wanted to."

He lives in his parents basement, hasn't held a steady job the 2 years I've known him, rarely does anything social and has been single the entire time as well.  

She is literally his only friend outside of his male cousin, but she still has many other male friends so it's not a control or jealousy issue.

I don't know if it matters, but I'm all for m/f friendships. They've hung out alone at our place and I have full trust in her, but after his comments towards her I'm having a hard time seeing myself wanting to include him or be around him.  I've asked her that their relationship stays to a professional level and stays at work because I don't feel comfortable with him around knowing he thinks such arrogant things about her.

Am I the Asshole!?