If she isn't connecting, suggest doing lunch or dinner a couple of times a week and inviting other sisters. Or, go do something in a small group. Colonies are difficult b/c you are setting up the chapter and getting to know everyone at the same time. Of course, if you're older, lead by example. She may be struggling with some personal issues and get defensive if she thinks you're out to get her or aren't on her side. It takes time and it takes effort on everyone's part. One thing that established chapters are able to do is to incorporate everyone so that no one feels left out. That's why so many leave chapters, they aren't connected. Be one to take that first step and be inclusive of everyone.