I wager that your kids will be ok. At least in my situation my impression is that my kids (about the age of yours) have adapted to the separation situation after a year better than I have.
I51 XW51 T30 M18 D11/11 S9 2/12 ILYBINILWY 3/12 I left home 4/12 PA 9/12 XW left home and moved in with OM 4/13 I moved back to home 6/14 Big D