MH...wow! YOu have done a lot of thinking and asking questions of yourself. It is possible to be dim with your H living with you. It is totally up to you and what you are comfortable with and if someone leaves, it should be your H but with your children being step children...how would that work?
Whatever you decide, I know you will be ok!
M48 H53 M16 T18 S16 D13 SS30 H drops bomb PA/8-30-09 H leaves 12-30-09 D filed by H 2-10 H asks to come home 4-11 Piecing