Iffy friendships?

I had a best friend back in college and I absolutely adored her but then I knew that she was talking behind my back and created some weird stories about me. Well, I talked to her about it and she blamed on something else. I decided to quit the friendship because sincerely I have enough crap every day and I don't want to be someone else's topic of the day. She called later and tried to be friends again and I wouldn't give her any chance.

Right now I have a friend who has been letting me down becuse of her being sick and her putting other people first. I know this sounds terrible of me, but when you here what I have to say you might see things my way. This friend also works for me, I pay her a good amount of money to help me clean house and take me on my errands. She comes Monday afternoon's and Fridays. She has missed the two Fridays including last Friday, in one month and on labor day she took me one place and came to my place and laid down for three hours before going home. I pay her even if she works or not. I did this when I was working and making really good money. Now I am disabled and making less than a quarter than what I use to make. Now she has to take next Monday off and this Friday she has another client she has to take to a doctor's appointment and will very late to come to me. That will mean she will only have worked a full day for me this month. I am feeling very necklected and used right now. This friend lives on pennies per month, she has been sick so I cannot fault her for that, I just am feeling left out and used and abused. I do not know what to do. One of her responsibilities is to take me to take my dog to his grooming appointment. I had to reschedule the appointment last week now I cannot take him this week until after she comes at 1 or 2 this week which is to late. I cannot take the dog on dial a ride, a local bus. I guess I need to just get over myself and not say anything. I made the rules years ago by paying her even when she is sick.

I call this a "but" friend...LOL I have one friend I've known for well over twenty years, in fact she's the ONLY friend I've known for such a long time...We have so many interests a like, and been through good and bad times that we've shared over...She has a good, decent heart and soul..BUT....she does tend to be shall we say a tad negative.??..I used to wonder why after a visit with her I would feel drained...then it dawned on me...I never, ever remember her initiating one positive conversation...it would always be some kind of negative conversation....Well I still value her as a friend, I just don't visit or talk on the phone with her as much...When you're surrounded by a person who is constantly negative its so easy to be sucked into that same mind-set--and since you and I are on the Law Of Attraction mode here...who needs that? Right?