I was very confused by the "5 husbands" thing since I associated that with someone who keeps getting divorced. But her husbands kept dying. It didn't help that they were all so much older than her. Some were abusive, some were nicer. But she was just a teenager trying to survive. Trying to hold on to the one little advantage she had: the land. My family was very lucky and exceptional to own land at all.
She needed a man to help her keep that land, so could not live on her own.