My best friend of 30years told me that she plans to leave her husband of 20years this week. She has been growing close to someone at work which she says has made her realise that her marriage is not what she wants. She has a spark with this man that has never felt with husband. Husband is devoted to her and their kids, on the outside they have a perfect marriage. She is going to blow it up for someone she says makes her feel alive. I want her to be happy and I want to support her but am shocked at how quickly this has progressed. How can I be a good friend to her? What advise / support I should give? This is so out if character she has so much to lose but she is adamant that she needs to do this and I want her to be happy