Why does she talk to me this way?

My husband’s Aunt always jabs at me passive aggressively. I’m sure I’m over-sensitive about it. My husband’s grandma is currently in another city visiting with DH’s Aunt. So I mailed out both their thank cards to her address. Both on the same day. I made a point of writing long thank yous to each of them because if I didn’t then she would have picked at me about that.

She sent me this text the other day.

“Hi. Thank you for the sweet thank you note. Since it was just addressed to me, I’m assuming you are sending a separate one to grandma for all she gave you.”

I told her that I mailed out two of them and I didn’t know why they didn’t arrive at the same time. 🤷🏻‍♀️ She just responded with an okay attitude.

But then the next day she messaged me how grandma’s surprisingly arrived in the mail and how weird it was. Like she was accusing me of putting it the mail. Where they are it would take more than a day for it to get there.

It’s just so annoying!!!