Dilemmas: South Africa beckons, but what about family ties?

JANE and Philip parted a year ago. Their children are three and four. They adore their father and see him regularly - and he adores them. He is living in the same village in Cornwall with his lover, a woman who has two children. Since the separation, Jane has been extremely depressed. Once with a good career as an environmental consultant, she now lives with her parents, who care for the children while she works part-time as a hotel receptionist. Philip does his best to give financial support, but he only scrapes a living as a landscape gardener. However, Jane's old boss comes to her aid. He is starting a business in South Africa and offers her a good job there. She would be able to afford a house and child care, and her standard of living would rise. It would be a challenging new start for her, but of course the children would hardly ever see their father or grandparents. What should Jane do?