It is a HUGE difference if she is still going to be working or if she is retiring. Not saying it can't work out if she is still escorting, but it puts some added roadblocks in the way of success.
My "adopted daughter" is doing the same thing--retiring and moving in with a BF. They talked about it for a few months and--I think wisely--decided that she wanted it to work out enough to change her line of work.