I've had problems with this family member in the past. She seems to think my dd is her dd and doesn't like me being there when she sees her 
On the first sunny day of the year (back in feb?) I told her about plans I had for the day she normally has off and sometimes has dd (8 months old) and invited her.
She got really pissy and told me she already had plans (hadn't told me) and she's still taking dd with her. I said we could talk about it that evening. But when I called her that evening and said you're still welcome but the place you have in mind is quite far and too expensive for me she said I knew she had plans and it's her special day with dd.
I said okay well let me know if you change your mind, didn't mean to upset you, etc.
Fast forward about 6 weeks and multiple ignored phone calls, texts and fb messages (I know but they were private messages!) and dd had an hospital appt (nothing serious just a scan under anaesthetic) so I texted family member to let her know how it went and she replied saying "ok can I have her tomorrow"
I was a bit so suggested we met up and she asked if she was having her on this day off anymore. So I just explained I wanted to spend as much time with dd as possible before she has her big op but of course we can meet up on her day off if love to see her! She replied saying it's not the same, we might as well collect the bits she's bought for her (a couple of toys and clothes) she hasn't seen her for 6 weeks because I've been withholding her!?!
I just said I'm sorry you feel that way and left her over the weekend to cool off.
Texted her this morning to see if she's free in the week at all and -surprise surprise- she's ignoring me. She's read the text, she's always texting and she always replies unless she's annoyed.
AIBU to go with my dd to meet up? Should I be giving her quality time (in her words she only want 6-8 hours a week alone with dd ) or should I stand my ground and wait for her to grow up?!