What difficulties is Mma Ramotswe facing in both her personal and business lives in the novel, The Kalahari Typing School for Men?

Mma Ramotswe is engaged to be married to a mechanic with his own business, but this man has just overcome a depressive illness and has failed to set a date for the wedding. This has led to difficulty in the businesses that these two people own, causing some concern about their future.