I hardly seek anyone’s opinion about my spouse to form my opinion about her. But you cannot completely stop it as people’s opinion keeps coming even though you are not seeking for it. Perhaps, it was more important when I had not known her that much (before marriage).
In my opinion, the more you know your spouse, the less important will be others opinion about her. Now, you can understand how important is people’s opinion about my spouse since we have been married and living together for almost a decade. However, I have some tendency to get influenced by people’s opinion if it comes from a different tangent. I mean, I value such opinion of people which helps me to understand her better.