Originally Posted by la petite moi

She's stressed. Ask about her day, and you'll probably get a crapload of complaints. Let her talk her heart out, and find out what's wrong.

Now, about sex- try giving her a backrub at first. Of course, you gotta get her to chill our and sit down for a bit, but I don't think any girl can mind a backrub. Anyway, see if you can get any progression past a backrub from there.