"Perhaps what is our present reality wasn't necessarily "supposed" to happen, but because of our mental/emotional predilections toward various emotions, the effect isn't necessarily what was "supposed" to happen at all."
Exactly - we create our reality. So it is correct that that whatever happens is supposed to happen BUT it is based on your THOUGHTS you had before it happened or manifested :-)
It is not - as poeple often wrongly say - that it was meant to be no matter what. Some say God wanted it for example. Like if someone gets in fatal accident someone may say God wanted it that way. That is not so.
If our thoughts are different the outcome will be different :-)