And he's flirty with me, has asked me out to lunch, tries to talk to me alone, etc. Nothing really over the line, but it concerns me that I will sometimes be in a building alone with him.
Guess I'd be in the "no" camp and not tell your husband. Only you know the degree of grief you will receive from your husband if you tell him. It your colleague hasn't done anything over the line, you might be feeding your husband's jealousy. What would be the benefit of telling your husband in your situation? If you tell your husband in advance of the open house, how might your husband act during the open house?
Maybe you might want to clue in your colleague, that you have a very jealous husband. Perhaps, that could serve to tame his interest in you.
Best to stay firm and consistent with boundaries. The same boundaries and skills used with a pwBPD can be useful in the work place. It could be helpful to read or revisit the links below.
BOUNDARIESBIFF RESPONSE MEDIUM CHILLhttps://bpdfamily.com/message_board/index.php?topic=114204.0If you happen to be in the building alone with the colleague, and he comes to your desk, tell him you don't have time to talk and that you need to be alone to finish your work. When possible, you may want to leave to visit the ladies room, you have to make a call, etc.
I used to work at a very large corporation. Most women have experienced the unwanted advances of a flirty male in the work place. I've had that experience. I even had one of my male supervisors (had several over the years), put his hand on my upper leg, while we were sitting side by side at a computer screen. I removed his hand, moved my chair farther away and that was the end of his advances towards me. I chose to not make a scene and I never had a repeat situation with him.
I used to have a problem at work with a married man who had a crush on me. I had to use various boundaries to get him away from my desk, as he would stop by periodically and want to get into lengthy chats.
If your colleague had done "nothing really over the line", you should be able to handle the situation. I think if we share every workplace situation with a jealous spouse or significant other, we set the stage for problems. (especially if the colleague hasn't done anything over the line).
The bottom line is that only you have the best idea of how your husband might react. You might want to ask yourself if you tell your husband, are you doing that from a position of
FOG?