From the Psychopath Free book, now available in Barnes & Noble stores everywhere and online at: are a lot of phenomenal studies on the traits and characteristics of psychopaths.
Feeling uncomfortable or being afraid in your relationship is the number 1 red flag that your relationship is not healthy.
Estimates are that 1 out of 4 women will experience an abusive relationship and there are often many early, detectible warning signs. Controlling behaviors often are the first indicators – anything they ask or demand you do to change who you are, your appearance or behavior seem like simple, compromise-type relationship concessions but are often veiled warning signs that this relationship may turn abusive.
Do they continue to touch you in seemingly innocent ways (like hugs, shoulder rubs or even repeatedly poking you in the arm like a sibling) when you ask for personal space?
This might be a sign they don't respect your right to your own body and could try to push those boundaries to much more dangerous limits in the future.
When one partner is constantly initiating sex and the other isn't in the mood very often, you're in for a world of crushed egos, hurt feelings, emotional pressure, and resentment from both sides.