I had a friend, who we'll call "Mo", who I ended our friendship with almost 2 years ago. I am a giving person to people that I care about, but when it's clear that it's seriously off-kilter, I opt to eliminate those folks from my circle.

Mo was going to Chicago 3 or 4 years ago and didn't have a good coat. I loaned her my leather trenchcoat for the trip. When I asked for it back when I was going on a business trip,
her reply was: "Oh, I thought you were giving it to me."
I said, "It is an $800 coat. I would not give you my best coat. I LOANED it to you"
Her reply "Well, I gave it to my mother and she's had the sleeves and hem shortened."
I said "WHAT?"
She said: "I'll buy you a new one." (She didn't have that sort of money laying around)

Mo has 2 cats. She traveled at least 6x a year to Florida to visit her family and I'd care for her cats each time. Over 4 years. Once - I asked her to look after my cats for a week. She fed them ONCE in 7 days. My coat was one thing - but my cats!?!? You don't F*** with my cats.

After that, I realized, I didn't need her in my life. I told her so. She said I was overreacting. The balance in the friendship was WAY off-kilter - as there were many little incidents as well. My theory on friendship is that if I can't rely on you when the chips are down, why bother if you are sucking me dry?

However, she keeps sending me emails. I got another one from her today. I've tried being polite yet curt, offering one or two word answers to her questions. Should I ignore it? Reply again with brief answers? Or tell her I don't feel the need to continue any further communication? (There is no chance in hell I would ever let her into my life again...)