I agree with Mistral. Here in the US, people don't mean this kind of stuff to be offensive or crossing the line. But as Muslims there is a way to set boundaries with coworkers and non-Muslim friends so we can still have fun and be comfortable around each other without touchy-feely or suggestive behavior. I think you should (calmly!) sit down with your husband and try to come to an agreement on appropriate boundaries in professional relationships as well as friendships.
BTW, I once had a similar issue with my husband. We went bowling with some friends, including one woman he had been friends with for several years. At one point in the evening, he gave her a small shoulder massage, and I felt really offended. I discussed it with him later on, told him I respect his friendship and that he has known her a long time, etc., but I just don't agree with physical contact like that. Since then we've never had a problem.