I will try and keep this as brief as possible. I have been with DP for nearly 7 years.Majority of the time a good happy relationship. Only problem is an old female married friend, who has a history of extra marital affairs. I have tried to remain calm about their friendship which is not close, just the occasional call and text, as far as I know. But my DP keeps his mobile almost glued to him. But have managed a few sneaky checks of it. But have become very suspicious of change of contact name to a mans name. Also missing unexplained hours which unfortunately he can excuse through work. Sorry to rabble on. This woman's husband died quite recently after a long illness. I expected DP to attend the funeral today because he knew him as well. Mostly through my unease of the situation I offered to accompany him, I also knew him as an acquaintance. But DP seemed alarmed at my suggestion and has said he's not going. This strikes me as very odd. I am trying to keep logical but finding this behaviour out of character.