Am I the problem?

So me & my significant other got into a argument today about us going over to his friends… he just commented we should go to a bbq so we could get to know them I guess meaning ME … I just feel like he’s being pushy the way he always pushes me to make friends with his friends girlfriends/ SO …he knows I’ve always been very private person with everyone & anyone. I don’t really like trying to be friends with new people I don’t know why but it’s just who I am I rather just stick to myself… & our small family but him oh no he’ll go wherever he’s invited. do you guys consider this a deal breaker? I mean it seems like this on top of other issues we have I’m always making the personal sacrifices & honestly I’m getting fed up…