[AOII Angel]

I think writing a rec that explained exactly what you explained to us would be as much as you can do for her. She made her choices last year that unfortunately may color her future rush. It's a shame that we force difficult decisions on young women and expect them to makes the "right" choice or else. Tell her to be humble and to not take offense when people bring up topics such as loyalty to her group, loyalty to her sister (you), etc. It's going to happen, and she won't do herself any favors by getting defensive. Butter your sisters up a bit too. Let them know how much you love your sisterhood with them and how much you would love the same with your biological sister if given the chance. After that, it's out of your hands. Sorority life is not the end all be all, so if it doesn't work out, be prepared to comfort your sister and offer alternatives.