Our current faculty adviser on campus was initiated as an Alpha Xi a year ago. She's in her late forties with a husband and kids, but that's the power of AXiD, I guess? TFJ for life!

I was kind of exaggerating. It appears that the OP is looking for people to socialize with. If one becomes an advisor, their role would be more of guide than a friend.

I will say that as one of the oldest members in my chapter (im 22 and will be 23 when I graduate in spring 2010), I notice an age gap that is hard to close at times. I love all my sisters and my big is almost 4 years younger than me and we do have a lot of fun but I often find my self in the mother bird role at parties and such. Most of the time things are easy going but I have a hard time with text speak and stuff like that on occasion

If you were initiated, you ARE an AXiD.

Howerever, you said that you are looking to re-live (or live) the collegiate experience. At 29, you may be able to blend in, you may look or act young, etc., but what sets people apart, when it comes to age, is life experience. These girls are teenagers for the most part. While you may have interests in common, you are likely worlds apart in terms of the way you think, your priorities, etc.

If you want to get involved with nationals, why not contact the local alumnae association and set up a collegiate/alum event? Perhaps look into volunteering on behalf of Fraternity HQ. You can find the contact info for your area on the national website.

You can certainly befriend the ladies of the chapter - I would just suggest changing your expectations a little. There are also other outlets to forming friendships and associations on other levels and with people who share your lifestyle/goals/etc., because whether you believe it or not, you really are living in different worlds.

Don't try to "fit in". Create your own niche. I hope that you find what you are looking for, and do take up AZ-AlphaXi on her offer.