I may have missed the 3x per week thing...but I would only assign that number if that's something she's expressed she would like to shoot for.
I guess just looking at it from my own perspective from a few years ago...as hurt as she is right now, and as hurt as I remember myself being...if my H had said that so shortly after I'd have moved out I would have questioned whether or not he was trying to manipulate me into coming home...whether he was sincere in it or not.