It may be good to get some family therapy. Both your daugther and step-son are having to give up time with their respective parent because you now are giving attention to your husband and step-child. It is a hard adjustment for kids. Letting her know that you still love her and you are not going anywhere is important. Making sure that she still has some one on one time with you and your step-son has some one on one time with his dad is important too. Your husband needs to step up and support you when his son does things that are not appropriate. Otherwise this can cause problems with your step-son thinking that it is okay for him to treat you this way because his father does not say anything.

Good luck.