2. Lack of eye contact
The power of a sustained gaze in a relationship is powerful. In 1970, social psychologist Zick Rubin attempted to measure romantic love by tracking eye contact between couples left in a room alone together.
The couples that felt more love held eye contact the longest.
A change in loving gazes spells trouble, since people tend to not take their eyes off things they like!
3. Less smiles, more grimace
Relationships feed off the little interactions, physical and otherwise. They remind your partner that you are still invested, still notice, still interested.
In one experiment, by psychologist John Gottman, couples who stayed married tended to turn towards each other in "bids" for affection or support, with a smile or wink.
If you sense that the smile is not genuine, no crinkled cheeks or eyes, frequent half smiles and tight-lipped smiles, you could be in trouble.
4. Feet pointing away from each other
This leaning away of any kind could be silently spelling out "break up" for you. Feet pointing inward signals attraction, subconsciously at least. The opposite is a sign that the emotional connection is off.
5. Shudder when you talk to each other
A body shudder comes from deep inside a person's emotional brain. Recoiling from any interaction is the ultimate teel-tale that the relationship is over. According to body language expert and psychotherapist Paul Hokemeyer "this reaction, especially to romantic advances, is primal."