My wife called me a "predator."?

All I wanted was a little nookie. Our marriage has been a roller coaster over the past 16 months. It started, or rather came to a head, when I discovered her plans to meet in a hotel with an old boyfriend. As you can imagine, after that betrayal, I'm a bit sensitive to rejection from her. On Sat morning, as she came out of the shower, I was trying to get something started. She turned on me an called me a predator, accused me of cornering her, etc. and we had a fight. Sunday night, we talked about the issue and she said she felt more like brother and sister raising kids than husband and wife, and that felt almost wrong. She said before, and again that night, that she would like it if we had separate bedrooms, and I could be with her only when invited - and not often. The next morning I announced that I would set up an extra bed for myself in our room. She actually seemed bothered by this. I think this seems like a nice alternative to moving out. It's a step away, but still available