He's threatened because he sees you as interfering in his control over her. He'll be threatened by anyone in her life that he doesn't feel he can control. Take it as a compliment!
I grew up in a family with a very strong female role model in my mother. I get annoyed with some of my friends that just won't set boundaries with men. They won't say no if they aren't interested, even though their body language clearly says they want out of there. I don't know how many times I have to go rescue girlfriends who have been raised to be so nice that it's unfathomable to them to do something rude like say no or walk away.
That pressure has to be so much worse then it really is an authority figure in your family. I'm reading a book (yes, for fun, laugh at me all you want) on sexual harassment which talks a LOT about setting and enforcing boundaries. It's got my brain going a million miles an hour on all this stuff. And it's reminded me to be more empathetic to women who didn't learn the skills I did growing up.
Michelle - Proud DR Rockette S: 28JUL07, D'd: 29OCT09 http://tinyurl.com/27j9qo2
