That he doesn't think too much of them.
He's either antisocial and it's a condition you'll have to be patient and loving with (meaning he just doesn't like to meet anyone, let alone your friends). Or it's a sign of Nothing Good.
Either he or she is faking their personality with you, or faking their personality with their friends. No overlap or someone's going to get hurt.
to me it would say he wasn't interested in me... or didn't care to get to know my friends or people who are important to me.
he's just not that into you.
It sounds like your partner is a tad jealous of your friends.
It means throw a party.