I am the same way nm, me and S have to keep busy. Christmas lights have been such a blessing b/c he loves to look at them this year and it kills a little bit of time every night. I don't know if it is his awarenss of his dad not being there, but neither he nor I like to be at home very much right now. When I pick him up from daycare each night I get this sinking feeling... "I have to go home now" and he always says from the back seat "no go home, mommy".
Also, it is ironic, but it seems like anytime I ever planned for my son to spend a few hours at daycare while i got something done he would get sick.