I think a lot of men think that they want strong women, but they really don't. They will start tearing you down, brick by brick, and then run off to rescue some lame-@ss single mom. Men have a fatal flaw in that the HAVE to feel like the hero.
I was an alpha wife too and he knew it when he married me. It's just that they are lying to themselves when they say they want a strong woman. I'll bet you haven't changed since you married, and why should you have to? Did you misrepresent who you were? I think not. I certainly didn't.
Move on. Do NOT change your name. You deserve better.