lil rant... don't read I'll probably offend you too....

You know how sometimes your having a conversation with someone, and you don't know what the wrong thing to say is? And you say it and at first the person doesn't react, but tries to talk you out of said opinion, so you steam off on a little tirade about why it actually is true and suddenly they for seemingly no reason explode? -sigh- neither did I, until like ten minutes ago.
I mean I do dislike my grandmother, for family reasons that I'm not going to disclose here, how was I supposed to know that she was going to get all defensive and take it as an attack on her recently deceased grandmother and herself? I didn't know that by the way, and I feel so terrible about it, I really didn't know... She took it as if I was flaunting the fact that I had a grandmother and was abusing her and she didn;t have one, which is so untrue, I wasn't even trying to, I didn't even mention her or her grandmother I mentioned purely some personal situations within my own family... And she called me insensitive, which I suppose I am, and I would be if I had known! If I had I would have shut my mouth and not said anything... I am such a terrible person, I am an insensitive b*tch... dear god, why do so many people still talk to me... I can now think of hundreds of times I've done this... and I realised, I am a horrible person....
I'm going to crawl in a hole now.... and think up of ways to apologise