It could be as "simple" as one of two things (coming from experience) (1) she feels if she allows you to touch her, it will always "have" to lead to sex and/or (2) she is just very uncomfortable/self-conscious of her body.

I know one of the "last straws" w/ H was when I finally told him quite angrily to quit grabbing my ass all the time. I saw him as getting kind of "raunchy" when he was doing this and I know now it was b/c he was actually getting quite angry/frustrated w/ my lack of attention to him. He saw it as "HELLO, I'M TRYING TO GET YOUR ATTENTION HERE AND SHOW YOU I FIND YOU ATTRACTIVE."

In other words, actions & "touching her body" is probably seen in two totally different ways by each of you.

Me: 38
H: 35
S4, S5, S10
Bomb 01/07
Wanted D - nothing would change his mind
Numerous A's prior to D bomb; EA prior/during D bomb
Piecing 04/07
Deployed for a year 05/07
Still Piecing 2010
M 11 yrs 05/10