I don't see anything wrong with telling your W that you feel hurt by her attention to the movie stars. Tell her that if she feels that way about you, it's not hitting home. Tell her you are unhappy and think she is unhappy and that you want to make things better for both of you...then listen.
In the past, a conversation about much less didn't come out that well. "I'm doing nothing wrong", "how dare you", "stop being so insecure", "don't you dare get mad at me for this".
This time, while fixing her friends PC, I stumbled across the crap; no wiggle room here. A flat out email exchange, with images, about who make her hot, who she dreams about etc. Not just movie stars, but in general, celebs. Most half her age.
If I were to stick to my boundaries, I give away half of what I own. There are kids involved. That's the only reason I'm even here.