Opposite ends of the spectrum

My boyfriend has a total of four months relationship experience.  I just got out of a bad 12 year marriage by the skin of my teeth.  While he is kind to me and very gentle, he's almost overly affectionate to the point I have to push him away when I cook.  I have two boys.  He has zero experience with children.  Not only is this a long distance relationship, but he innocently allowed my son to minorly injure himself while on my boyfriend's watch.  When that happened, I broke up with him on the spot.  Now because of my insecurity, I got back with him.  Thinking of it all, his lack of experience with women and children, I do not want my children and I to be his learning experience.  I'm ready to make a clean cut out of the relationship.  Any suggestions?