There is nothing wrong with saying pack up and come home. You have let him know that the door is still open for him.
If you remember from my thread, my kids said that every night for months. First my H would ignore it, then he started saying I hear you and the night before he moved back he said tomorrow.
I think that fact that that was out there as an option helped him make that move home.
And good for your in-laws for helping nudge him along! My MIL told my H that he couldn't move in with her because she didn't think it was right to leave in the first place.
I am glad the texting has worked so well, we still email some but not as much as when he wasn't living here. Besides I had to be careful with what I said as I was sending it to his office and many places have policies about content of emails. I may have to check into this texting thing though....
I am sorry your sister has chosen to be an OW. I find it ironic that she hasn't learned from your pain. I agree that there are some threads on here that might open here eyes - check out the infidelity area. That is sad, and the last thing you need on your plate right now.
I'll keep praying for you and your H - and hope that his path leads him home.
totite
"Accentuate the positive, eliminate the negative..."