Insults abound

So. I had a work Christmas party last night. One of the guys from work told me I need a boob job and another guy I met told me I am single because I am old and dull. 

What the fuck makes people think it is okay to say that kind of shit? What happened to the old adage "if you don't have something nice to say don't say anything at all"?

I know I'm far from perfect but I don't need my flaws shoved down my throat!