This is not unusual behavior, yorkies tend to be more partial to one or the other. They say that boys favor to the woman, and that girls it really can go either way. Unfortunately there is probably nothing you will really be able to do about it, you can try and not give into his needs as often and have your husband take up more of the responsibilities with him, such as walks, bath time, treats etc... This may help, but you should feel really loved, I love it when Reese wants to give me more attention than daddy
. Hope this helps.