jealousy

[jody]

please help!
my female schnauzer (both my dogs are shelter dogs) is extremely jealous of my male.
i got duncan first from the kill shelter (he's 2 and extremely laid back)
bella is 8 months and a typical terrier. (i got her about 4 months after i got duncan, same shelter)
the problem is, she "will not" let him get near me. she jumps on him chases him, and just will not leave him alone
if i want to spend time petting duncan, i have to put her in time out. (i secure her by a leash to the door knob where ever i am).
i don't think it even bothers her much anymore, she just lay's down and goes to sleep. i have tried spraying her with a water bottle, but she started liking that too. i always say "no" when i correct her, but i know if she could, she would just stick her tongue out at me.
she is making me misserable, not to mention poor duncan.
i can't bare the thought of giving her up, i do love the little bully.
if anyone has any ideas, or has been thru this themselves, please let me know.
thanks!