for me personally there are two sides. logic almost always trumps emotion.
once I make a logical decision, as painful as they can be, after time has passed the emotions calm down.
you realize you've made the right decision. the two side integerate or re-integerate and your mind/emotions will calm & become one.
this can be a very difficult thing to go thru or it can be a simple common sense issue.

making decisions on emotions alone can be tricky.
you can be lead down the wrong path very quickly if you leave logic out of the equation.
whether it's a relationship, job situation, ect. do what's best for you and/or your children.

if you just can't wrap your head around this maybe a therapist can help you feel more in control of your life.

take care