Just want some opinions of this

Thea
So me and my SO have been together for 4 years but have known each other forever. He knew every bad detail about me before we got together and never judged me. Know we have a very kind of straight forward relationship. I let him do what he wants he lets me do what I want as long as we not cheating on one another nothing else matters to us. we don't let other people bother us nothing. We built a friendship and relationship bond that pretty much signifies nothing can break us. 
Now I'm starting off with that to say his friends all admire our relationship. One friend particularly more than others. His one friend has been trying to have relationships with women that is just like me and my SO and it never works for him. The girls always tell him you are too clingy you are doing too much. You text me too much. Everything. Now me and my SO are clingy but we give each other space most of the time. His friend won't back down. I mean he even called my SO to go grocery shopping with him because he didn't want to go alone. 
Don't get me wrong he is a nice guy and I admire the fact that he looks up to our relationship as one he wants with a girl however we told him you cannot have a relationship like we have overnight , it took us years and years to get to this point and it's still a work in progress. 
He told us he will just use us for advice and we were fine with that. But then when she broke up with him he took it out on us like we told him exactly what to do. I always said everyone is different what may work for me may not work for her. I mean we're we wrong for even helping. My advice is always neutral because I look at both sides. So I just want to know. We're we wrong?