Kass...I am still stuck on what your H's problem is with your kids? He knew you had them when he married you. Its like he is forcing you too choose. It shouldn't be that way. Your youngest is 18....it won't be long now before they are ready to move on, but I think if you push them out because of your H they will resent you for it.
Me: 46 FWS: 36 Married and Divorced 4/07, Pregnant 7/07,False R 7/07 Baby Girl born 3/08 Kicked him out because OW: 7/08 5/10 He realized what he had and lost. Moved home! REMARRIED 3/14/11!!