I'm bisexual, but I'm more interested in women. My sorority has been supportive of me (I rushed openly gay), but they're still adjusting to me holding hands with a female in my letters. I'm very out and I do get grief for it, but they try! I'm here if you need anything! PM me if you need to.
Another resource you may want to check out is
www.lambda10.org you may find some contact infor for your gay sisters!