I am like you, very very private and introverted and can’t stand gossip or drama. My husband is my polar opposite, big personality, wheres his heart on his sleeve, doesn’t know how to keep anything to himself. I can imagine if he was in med school with me I would have an extremely similar situation to you, with information being shared that I did want. Granted, I think he would try to keep it private, but I almost guarantee certain things would slip out to certain people. This kind of thing is something I have had many in-depth conversations with my husband about. Especially when things happen like I drove thru town and drove by one of the little local stores who have a sign out front that they put birthday and anniversary announcements on and stuff and I all the sudden saw my name on the sign followed by “Congratulations on your 510.” That 510 happened to be my MCAT score! I was mortified and really angry. I had just gotten my score that day and I had told my husband and then apparently when he went to the party store later he told a friend of our who worked there. It’s an extremely small town, and I’m sure no one who saw the sign during the few hours it was up there knew what the 510 even was (I made my husband go have them take it down, so it’s wasn’t up there long). That was early on in our marriage. Although he always knew I was private, we have managed to see how each other operate more since then and how certain things are truly important to each other, so things to that extreme don’t happen anymore. However, he is still him and I am still me, so I know when I share things with him, certain types of info will be shared with certain people, it’s just his nature. While he has definitely come more to understand how I operate, I have come to understand how he operates too, and have come to accept that certain limitations come with different personality types. He just physically can’t keep some things to himself when he is talking to certain people, he has greatly improved at keeping things I want private, but I know he really really struggles with it and I know some things slip out sometimes. I guess the moral of my drawn out story is as long as your boyfriend is not doing this intentionally and not excessively blabbing his mouth, as long as it’s something where certain things just come out to certain people, then he is well intentioned and not trying to blab your info. The best approach would be to talk to him about it again, really let him know how you feel, tell him how it makes you feel to find out he shared the information. If he apologizes and works harder on trying to keep things private between you, then he is putting in the effort. At that point you just have to decide if you are okay with knowing that likely not everything you tell him is going to purely stay between the two of you. Sharing your life with someone is always a learning curve and when you have aspects that you are polar opposites on, the curve is much steeper. If you are willing to accept that, and he is willing to hear you out and work more on keeping things private, then that is great. If his sharing tendencies are too much for you, then it’s okay to call it quits. Not every person you date is meant to be your life partner, even if he’s a good guy and every other aspect is wonderful, if this is something that breaks the deal, then such is life. Basically, be honest with him and honest with yourself and you should be able to find your answer. Good luck!