Would you for give some one if they did this?

About 5 years ago my aunt was married had two kids. well her husband decided to get a computer. My aunt was on it a lot , then she met some one on the net talked to him for a few months and then one day said she was goin to bingo but never came home. She ended up goin to illinois to meet the guy. She then decided to live with him.. so she left her kids and husband for this man who has 3 kids of his own. Her daughters have for given her and some of my family but other family member's are still upset at her and are not really talking to her anymore. Should they forgive her and jus move on.. or what?