Yes! Fighting is good as the two opposing sides need to express their ideas and emotions. I, for an instance would not usually go against what my husband says. But when I feel that he is crossing the line, when he decides even with out my word for it, when he follows his parents instead of me, I feel so insecure about it. And with those predisposing factors, I would start a conversation with him. Not in fact starting a fight but for a reason to hear both sides. If the conversation goes to an argument, I would still push it as long as I think I am on the right track. I will persist as long as I feel that my voice should be heard.
There were times, that this becomes effective and that he would ask for my approval. But there would also be times that he would negatively accept my opinion. Anyways, as long as he loves me, neither he nor me will win, instead it is the LOVE that WINS.