Dear Civil Behavior: I am going on a five-city tour overseas with a longtime friend of mine who happens to be gay (I am straight). Another old friend lives in one of the cities we’ll be visiting, and she wants to meet up and show me around. But she not that open-minded about gays (she knows he’s gay), so I’ll be spending the day with her alone. How can I tell my travel companion taking a detour to see an old friend but he can come? It really a dilemma for me. Any advice is greatly appreciated.  Terrado, age 61