What about couples counseling/marriage counseling? Have you two thought of that? Would she agree to that? You two could certainly use it. It seems that you two don't know how to communicate -- how to TALK. You've got to be able to talk to each other -- to tell each other your needs & wants WITHOUT fighting. It needs to be done with love - calmly and nicely. You can't demand these things. And you can't assume she knows what you need. She doesn't know what you need anymore than you know what SHE needs. You both are drowning in boredom.
Get some counseling and learn how to communicate. Your marriage CAN be saved, if you want it to be. And she'd better go if SHE wants it to be.!!! Best of luck, and God bless. Hugs, Lee