Please could someone advise how to support a friend (British national) resident in the USA, whose husband (US national) is psychologically and emotionally abusing her. They have two small children. The move from the UK was meant to be temporary but he is now making noises about wanting to stay. Is there anything she can do to avoid the likely scenario of him forcing the children (and therefore her) to stay in the US in the event that the marriage breaks down ? Very worried about her.