Is he ashamed of me?

vera

I've been with my man for 5 months, and I still haven't met his friends. Whenever there's an opportunity like a party or gathering, he always finds a way for me not to come or not to meet them.

He said about a month ago "you're never meeting my friends friends because they'll say embarrassing stuff about me" but I feel like that's just an excuse.

I feel like he loves me when it's him and me, but ashamed of me when I'm around his friends. Any theories?