How do I get my Aunt to back off without upsetting her?

Question

I havent seen her in 3 years, shes a distant relative. I dont want to upset her but she keeps emailing me alot. What upsets me is that i wrote some emails to her sharing my life with photos and recieved no response.
Shes old, in her 60s , never married, no kids, i feel she was jealous, shes also made remarks in her emails to me putting me down and i had to defend myself..

I tried not responding to her, we had no contact for like a year, then she invited me and my mom for thanksgiving, i had to email her back saying "sorry i have alot of work to do but thanks"... Then she emails me saying "i hope you make it next time with your family at my house and i have alot of projects to do myself"
I felt it was a dig, then i get an email from her saying "Today is my birthday, happy birthday to me,, she sent it out to many people,, so i just said happy bday.
Now she emails saying "I hope i see you all before xmas, my friend is selling nice stuff on ebay"... I responded "yes i hope to see you too

* 11 minutes ago
* - 3 days left to answer.

Additional Details

4 minutes ago
I said whats your friends user ID?

She emails me back "This is his USer ID (--)
I wonder how old he is? He has a HIGHLY professional ebay account""

2 minutes ago
i think its weird how she emails me, what does she want?

I know shes rude but i think shes off and dont want to upset her, do i keep writing generic emails like i have to her or not respond?

I replied back to her last email saying "thanks for your friends user id, he has nice stuff.

Answer 1

Change your email account. If you have to deal with her later, tell her that your computer crashed, and you lost all info on it. It really does not matter if she believe you or not, at least you will have piece of mind for a period of time.