Stinky is a drunk.
Actually, it's reasonable to suspect that the sparkling husband primitive's wife has been slipping some, uh, stuff into his daily cocktail.
It's obvious the sparkling husband primitive's wife is bored with him, and would rather hang around with the horsey Mrs. Tutweiler down the street; she and Mrs. Tutweiler have gone on trips to Switzerland before,
sans the sparkling husband primitive.
And besides, there's that big life insurance policy.