Hmm... It sounds like a difference rather than being a 'better' or 'worse' kinda thing. Some people just are more friendly (or open to making friends) than others. I'm personally not much of one for really chatting to waitresses etc but my ex boyfriend really was. And... I'd feel a little annoyed sometimes that he paid them so much attention! But then... I started paying them more attention too and it would turn into a pleasant social encounter. He was amazing for us being able to go to a bar or a restaraunt somewhere neither of us had ever been before and then we would end up really chatting to lots of people there like they were old friends almost :-)

That being said, I'm sorry you felt embarrassed about what he disclosed to the waitress about you. It can be hard when it comes to things that we are sensitive about... But part of making friends involves risks... But then whether or not those risks are taken should be up to you. I would say something to him about this if you can. But it might just be that he is more open to being friendly with people.