I think she left it there for you to find. I mean, she knows you sleep in that bed. Maybe she is telling you that she misses sex, or maybe she is telling you that she can take care of herself. It could go either way.
The sex thing has been hard for me too. I still get some when I really can't stand it anymore, my H is still in the bed and doesn't seem to mind if I just, ummm, help myself, but he doesn't initiate and the emotional connection isn't there so its not the same. I suspect you'd find the same with your W if you had the opportunity.
Definitely be careful with the young women, you can complicate your life so quickly.
