NO, no, no. I didn't mean for you to do that. Sometimes I think my "eloquent"-ness would be better replaced by some direct "smack", i.e. grow a pair... I just have a personal thing with that statement. Maybe I was a eunuch in a past life, lol.
In reality HE is the one going all alpha-male on her (lol) but actually, now that you bring it up, I think that is also a problem. Some days, minutes, hours, HH, you ARE the alpha male you talk to frank about and other times, you are a capa-male. I think building up some consistency is key. I don't think you can NEVER do anything for her, just establish some kind of consistency to when you will say no, i.e. when you are otherwise obligated to be somewhere or do something else, etc.
The point is not to be an a-hole, it's to be assertive of your own life and not to feel guilty for that. I have a LOT to learn in that respect, as do many of us.