It's a shame you decided to delete. I read your post earlier and had a response written out... the main thing I was going to say was that I don't think you're a jerk for writing what you wrote. I actually think you were being healthy!
If a primary relationship isn't meeting your needs, whether they be sexual, emotional, or otherwise, it makes logical sense not to focus the lion's share of your attention on that relationship. I don't think you were wrong in what you were writing in the slightest.