show the chihuahua that you aren't a threat to him. give him treats, walk him, show him love. he will learn to trust you.
ALSO!!! I was thinking about this. mabey it could be that your husband doesn't punish him and so he has learned that you are bad and your husband is good.
it's just like a little kid. if one of the parents won't punish them for something they do wrong then they automaticaly become the "favorite" parent. right? and the parent who punishes the child for doing domething wrong isn't as beloves as the othe parent. well this is the same consept. so have your husband join in on the teaching prosses.
good luck!
Ashley >> Stay informed about: chihuahua