Help on a conversation with my boyfriend

Hello, I need some advice on how to approach this conversation. I’ve been dating my boyfriend for 6 months and everything has been going great. As we are getting to know each other more, I’ve seen things that aren’t deal breakers or anything but maybe things that bother you or the other person. One of these things I’ve noticed is that he has a lot of good friends who go to him for advice and I love that about him because he gives great advice. But after he talks to them and often it’s about relationship problems, he will bring me into it and ask me if this is true about our relationship or will form opinions about things because of something someone else told him. I feel like it’s not fair to bring other people’s problems or concerns into our relationship. I know I’m being broad, but I’ve seen this happen a few times with different topics he’s discussed with his friends.

How do you recommend I bring this up to him in a kind way? What should I say?

Thank you for the help!