It's not too much to ask at all. Could it be that it's more an issue of her not wanting to take responsibility for the dog when you're out?...
...accourding to my horoscope it's a good day for me to communicate. Want me to talk to her for you?
Your communication skills will be running on high -- so much so that no matter who you're chatting with, they'll be amazed and delighted to hear what you have to say. That goes for friends, foes and strangers alike. Work it, baby.
"Two drifters off to see the world. There's such a lot of world to see. . ."