Ok. This is a bit of an unusual one. My partner works with a variety of people in his job (highly academic but most people have a personality disorder). One of his colleagues we believe is a psychopath, that is not a euphemism for mentally ill as this person genuinely seems to have the traits of a psychopath. Anyway, I have previously encouraged partner my to socialise with this person (also male but might be Bi) and he has also stayed at our home when I've been away. He has made suggestions that my partner should cheat on me when they've been going out. I met up with him and my partner for drinks a few weeks ago and I distinctly got the impression that the colleague didn't like me. I mentioned this to my partner and he dismissed it. My partner said this in passing to his manager and his manager told my partner that not only does the colleague not like me he is actively trying to split us up as he does not think I am good enough for my partner. My partner and I have been together over 11 years, we own our home jointly and are very much equals. My partner has Asperger's and has laughed this off as he said it's up to him to decide who is good for him and it is me but this has really struck a nerve with me. Part of me wants to confront the colleague but my partner has to work with this person. What do I do? This has upset me. I don't know what to do. As an example of the colleague's behaviour, he had mentioned to my partner that a person they work with is nearing the end of the contract and that my partner should try it on with them as they would no longer be working together. My partner laughed it off (along the lines of "thanks but no thanks", when I saw the colleague and my partner for drinks, my partner and I were discussing plans for the weekend, the colleague was getting ready to leave, I said I was busy so in front of the colleague, I said sarcastically "well why don't you and Xxx spend time together". The colleague was visibly taken a back because I think that he thought that I was unaware of the comments he had made to my partner. What do I do?