Welcome to our forum.
I think you can expect some rough waters at the beginning of any poly relationship, so I'm not surprised that things are a little rough right now. You have to get it worked out with your husband what he can and can't live with, and what you can and can't live with as well. Sometimes people change, so give this a little time and a lot of communication.
I would encourage you to look around on our site, see what threads call to you, and post any thoughts or questions you may have. You never know when someone may have some insight on your situation that will help.
Glad you could join us,
Love means never having to say, "Put down that meat cleaver!"