Debi, double check me on this. You should be able to add marriage #1 with date of marriage and date of termination of marriage. (Death, divorce) Then add number #2 marriage using the same procedure. Then #3 marriage (if even to the same person) with date of marriage and possibly death/divorce which terminated the marriage. On down through the spouses, although I wouldn't add termination date for the final marriage if it ended in death of the subject (Charles Allen) unless he did actually divorce her. DId this last wife predecease him? I'd leave her be without a termination date.
Clear as mud? Just know that your ancestors aren't alone, many of us have folks in the same category. I have one great-aunt who divorced her children's father when she was in her 80s. They did stay friends, but he remarried!