Mi, sorry to hear of this development and how he handled it. That is very tough. I think sending all correspondence to your parent's address is a great idea if you don't want him to know your new life address.
As for the maiden name thing, I recently sent STBXW a letter, and I put her maiden name on it. She put in her proposed settlement awhile ago that she wants her name changed. Also, I don't want her to have my last name anymore, so I wonder if she was thinking the same things you were. I didn't even give it a thought at the time, because she'll be back to maiden anyway.
I wish you the best as you move forward! Did you ever approach the guy you were interested in? Planning to before you move?
H: 29 WAXW: 30
Bomb Drop- 9/9/13 Negotiated Settlement- 5/9/14 D Final- 5/21/14 XW has breakdown in attorney lobby- 5/30/14