Tammy, I just got out of a situation like this. This particular young lady and I started off cool, but over the past few years, it deteriorated. We both held officer position in an org and it seems like she was always undermining me, trying to control, not supporting my efforts, and making things way more complicated than it had to be. (I was pres, she was the treas) 70% of the stress/drama in the org was b/c of her...It really felt like she didn't respect me in that position. She even went so far as to accuse my boyfriend and I (he was VP) of "always trying to get over" on the org (she couldn't back it up, though and was the only officer who felt that way) I don't recall doing anything to her that may have rubbed her the wrong way, but she's got something against me...dare I say it may be jealousy, but I have no clue what she could be jealous of.
Basically, she had a nasty, control-freak attitude, and I didn't want to deal with it anymore...
But I had to. How did I do it? I stayed professional. I dealt with her long enough to take care of business. I maintained a working a relationship with her, but a personal one? Forget about it! We both hung around the same people, so if we all went to the movies or to get food, cool, (I wasn't about to stop hanging out with an entire group that I liked b/c of her) but me going out of my way to invite her somewhere? Hell, naw.
Now that we're in different parts of the country and there is no need for us to communicate, we don't...Yasava is a happy camper.
Any suggestions for you? I don't know how your personality is, but for me, I'm not all that confrontational, so I just remained cordial and kept up a decent working relationship with her, I didn't make any efforts to see what her problem was b/c I understand that "everyone won't be your friend" and I didn't (still don't) have the time to worry about her. I just kept on stepping.