Kobojunkie:
Op, I noticed how you carefully refused to answer many of the concerns expressed on the other thread. But it seems here that at the core of all of this is a lack of trust on your part for your wife. Is there a particular reason this? Op, why do you not trust your wife enough to accept, even when she offered to go with your brother, that she may just be wanting to attend an event?

You mention culture, and I must say that I have never read of any Kenyan culture that required women to spill entire details or their movements and dealings in marriage. Most cultures simply expect that couples would do so out of courtesy but no culture mandates it. This makes me wonder what it is you wish to hide behind the culture card.