Many colleagues are very good, and we will gradually develop into friends. In fact, the fate between people is a particularly wonderful connection. Although some people are your colleagues, you may not feel any connection between them, but they are likely to develop into friends. Some people may be your family or friends, but the relationship in your will always feel worse. Therefore, whether it is good to talk about private affairs with a close colleague depends on your own positioning of this colleague.
If you think this colleague has a good relationship with you and can talk about some personal topics, then you can talk to your colleague. If you feel that the relationship between two people has not developed so deeply, you will still focus on work.
I will talk about my personal affairs with my colleagues. Because in a person's life, you have to get along with colleagues for a long time. Many times you may encounter some problems that you can't solve now. You can talk to those colleagues who have good relationships.
Because everyone sees things from different angles, maybe when you are in a dead end, another point of view from your colleagues will make you suddenly enlightened. And make your whole mind a little more open, and chat with this type of colleagues more, which is only good for you and not bad for you.
To sum up, I don't think it's a bad thing to talk about private affairs with close colleagues. I will also tell my colleagues about my personal affairs myself. In fact, I think it is particularly necessary to have a good relationship with colleagues, because to some extent, it will be of great help to your work.
Many emotional contacts are not only based on work cooperation, but also some other personal communication behaviors. So I think you can talk about private affairs with your close colleagues, which can also increase your direct feelings with your colleagues. And they are already close colleagues, more like friends.