Is there a faux pas book written somewhere?

If there is, I'd like to read it and see what it says. Is there some universal way of talking acceptably? Is there an unseen code of what to say and what not to say that I don't know about? Everyone else seems to know about it. Still, I find myself looking like a jackass for saying something wrong and either my own foots in my mouth or everyone else is shoving there's in instead. It's no one else's fault. I find for the most part that I'm a fairly tactful person when it comes to conversation. I see other people constantly saying things that should have been thought about and discarded before they ever said it.

Very similar to this is the set of rules are the many rules concerning relationships. What does it mean to be seeing someone, being boyfriend and girlfriend, how long does this process take? What is the amount of time that a friend's ex-girlfriend has to be single before you can ask her out? Is there ever a time where you could ask her out? I see myself as well as other people fail at this time and time again, and who is the person with the absolute truth to tell them that they are wrong?

Tonight I stepped over the invisible line, and my brother let me know where I was wrong since maybe he's had experience in this area too. It was just as well. We passed a fairly embarassing moment, but it was towards the end of our meal, so I was able to silently depart without digging myself in to a deeper hole. I'm not worried that things will never be the same. I'm not even worried that anything will change from this conversation to the next.

I was just kind of pissed that I had to look like the ass tonight.