I'm not a manager, but I'm an undergraduate in a psychology. While studying psychology I was advised to try at least once psychological consultation on myself in a role of a client. I did, I've discussed a lot of things with a consultant, but the most striking question for me from a consultant was "did you asked him?" It was about some situation like yours.<p>If you didn't asked such a downright questions to a people before, that there is a little advise from me.<p>1. Asking him describe his behavior, not his personal traits or motives. He could be offended personally if you said something wrong about his traits, and it wouldn't improve the situation. If you need to refer to his possible traits or motives, keep in mind that it is all your hypotheses and they are all wrong, because you couldn't make sense of the situation, i.e. they do not describe a reality.<p>2. Describe him what you feel. Don't forget to mention your emotions, it helps tremendously. Judging by your text, I suppose that it could be something along the lines: I'm trying to do my job good, to be nice with people, I want a good relationships with others and you personally. I <i>need</i> a good relationships with you, but it seems that I failed with that, I'm disappointed and sad, I couldn't understand what I did wrong.<p>3. Express your hope to find a good resolution of this situation, and let him talk his mind.<p>Of course, it should be done in a friendly manner, without threats. If your verbal skills allow you to nicely affirm him that there would be no bad consequences for him in any case, that you seek how you could improve yourself, not to harm him, than you probably should do it.<p>It doesn't help you to become friends with him, probably, but at very least it could make him conscious about his behavior without offending him futher, and he would change it likely. Hopefully it would be a change for a better. :)