My pup is too attached to me. How can I transfer some of her affection to my husband?

Try transferring some of those positive rewards to your husband. Let him let her out to potty or hold the leash when walking. Have him feed her when it's dinner time. Also, have him teach her some commands. Let her work for him to get rewarded. Start teaching her that nothing in life is free. Not only does she have to work for him to get rewards, but she needs to start working for you, too. Don't constantly give her attention or other rewards unless she does something for you. Part of it is probably that she has come to expect those rewards from you on a regular basis since you spoiled her as a pup. Now, she needs to gain a little confidence and independence through training.