I'll give some options to choose from.
1) rejection
2) rejection
3) rejection
4) rejection
For me the answer is rejection, and the question is: why?
I think the low feelings associated with rejection is an adaptation (anyone surprised?). I think grouping is such a strong force in us that when threatened through rejection we become depressed, and since depression is an adaptation which tells us to slow down and think deeply about what we are doing, they work hand-in-hand.
Mothers, fathers, girlfriends, boyfriends, husbands, wives, friends and even pets use the threat of rejection as a method of manipulation.
See how much sense evolution makes?
