I am trying to work out how to handle a work situation with a colleague/ friend. We have been working together for some time, and it’s all reasonably professional (office job). He’s very good at his job; we are peers and have a collaborative work relationship. He’s married, and so am I. Nothing inappropriate is happening, but this isn’t above the board. He’s too helpful and too supportive to the point other colleagues have made various remarks about it. He comes to my desk often and sometimes says something that surprises or shocks me, or he will remember something I said years ago. But at the same time, he has never crossed any lines. I have plenty of male friends and male friends at work, but something about him makes me think this isn’t all so innocent. Or maybe I should stop being paranoid and enjoy having a good friend at work? He tells me all about his life, his past, his financial issues, some issues with his wife, and about his kids; he comes to me for every issue at work. I do equally come to him for work issues but don’t share anything about my personal life - I mean, I do, but not in so much detail. We are getting too close i feel and that makes me a bit paranoid about emotional infidelity.