Is it wrong if your girlfriend or boyfriend goes to somebody and to talk about your relationship to somebody like if y'all get an argument or anything

Let me tell you it was a lesson learned that I basically told a friend what was going on between me and my partner and it was a bit messy. So it was kind of a wreck and I would not recommend that at all. And if you do really need to talk to somebody outside of your relationship, talk to a professional or someone that doesn't know you or him that well, that way you have the best unbiased advice.