Sorry youre having a rough time with this. I know how it is to know exactly what you should do but it still being very hard to make yourself do it.
Be consistent in whatever changes you are making right now. I honestly think that this time apart might do you some good here. It might help him miss you. It might also work wonders for your sanity.
The thing about you walking around in thongs, yoga pants, naked etc. is probably having an effect on him. Be consistent with that too. Just because he doesnt say or do anything right away doesnt mean that he isnt thinking it. You want him to see you as someone that he wants to have sex with again. Eventually it is gonna drive him nuts. Again it isnt the answer to every problem just hopefully a way to break down a barrier.
The best thing you can do while he is gone is stay busy though. Keep your mind off of it. It wont be easy, but you can do it.
When he goes to leave, I would leave it at a simple "have fun." Thats it, very casual and dont show any emotion other than a smile when you say that. Dont call him or ask him to call you or anything. You will be concerned with yourself. Dont tell him to tell his family hello or anything like that either.
M:33 W:30 T:10 M:2 B/D: 5/27/14 S: 5/28/14 Wife moved back in 7/18/14