There are a few tell tale signs that give it away. I think that in the early days of a relationship, if you get over-reaction to small things then this is a no-go, imagine the over-reaction x 100 and thats what it will be like once things are settled. If you feel controlled in anyway is also another one, the worst kind are the ones who want to change you into something your not, typically this will be when and where you go out & with whom - have they really honestly thought about your pleasure the time you have been with them or not? If not its time to move on.
