First off concerning the lice, they live near the roots, so you'll have to comb them all out, which does take a ton of effort and patience. Just stay after it and you'll get rid of them. Also, doing the whole house disenfection is necessary too.
Concerning your stbx, I'd still advocate your moving forward and telling him he's got one year to "show" and "prove" his intentions to you. He can't say things alone, he must act.
He needs to make you feel special and sexy. He hasn't even been passionate toward you, which is a critical need for any relationship to last. You want a marriage filled w/love, commitment and passion and if he can't SHOW you that, he can't move the mountains that he needs to move.
