I have an unpopular opinion on this subject in this forum. I think your feelings are justified. I would have been jealous also. And mainly because I myself have had a couple major connections while dancing that lead to other things off the dance floor. Sometimes it is NOT just dancing. When you have an intense connection with someone it is a human response to think if this intensity could carry over to other parts of life. Of course it is one's choice to pursue these feeling or not. I think it was great that the two of you talked about it and if you are in a committed relationship it is fine to not want your partner to be making intense connections. I myself am in a committed relationship with a dancer and I no longer put myself in those situations. We mainly just dance with each other and a few friends...which works for us. So you need to figure out what will work for the two of you. But don't let anyone tell you that people don't hook up in salsa or that its just dancing. It can be a powerfully sensual experience.