Advisor needs advice

[ASAlady]

I am advising a nearby chapter of my sorority and have been doing so for about 2 months. I get the feeling they are not receiving me well. When they first met me they gave me the idea that they wanted me to become another sister of their chapter. I told them thank you, but my role is not to re-live the college experience, and I will attend what they invite me to (academic stuff, meetings, never parties or anything of that sort). They were fine with that, and I figured that I should be one of their advisors first, friend/sister second. I don't know if it is because it is the end of the year and they are tired, but I feel like they have been blowing me off majorly. They plan all this stuff out with me and then never follow through with it. I have a full time job and I am in night school getting another degree. I am too busy to plan around them for them to cancel at the last minute. I don't know what their deal is. I was thinking of quitting and advising another chapter who will be more appreciative. Any advice on how to handle this?