in my opinion, they (men, could be woman, or that special someone) doesn't really know what to do yet and need time to rethink
because they dont want to admit they failed and think they can change the other person into what they want instead of admitting that they just arent compatible.
Because many men (and women for this matter) are like children and afraid, not of the others reaction, but of being alone. And so, in order to avoid this will stay with someone they do not wish to be with until they find someone else just be have someone.
I don't understand this question, please reiterate. And also, if you are trying to generalize all men into liars, you must be looking for a fight.
I am a woman HEAR ME ROAR!! lol
...What? Well, I would have tried to answer your question as well as I could have, but the grammar and way you wrote it made no sense.