Sister

[Hazpop]

My sister is older than me she's followed me everywhere I've moved to, she can be bossy and opinionated and sometimes belittles me, she has done a lot for me over the years, I'm always grateful and don't take it for granted, but if I do anything for her, buy her presents or make her food, she rarely says thank you , sometimes her behaviour gets me down, I set boundaries because if I saw her everyday I would go crazy

Sounds like you have it under control

Sounds suffocating

What's the AIBU here?

I'm new to this I just wondered AIBU about her behaviour

how odd
how many times has she moved to follow you?
she’s single presumably with no children?

im wondering why you are buying presents and cooking for her

Well you can't change her behaviour but you can change your reaction to her behaviour.

Do you tell her she's pissed you off?
Have you asked her to stop following you?
She's been like this for years, so why are you bothered by it this late on?
Are you tolerating her rudeness with silence in gratitude for her previous help?

Yes I stay silent because I hate arguing and she can go off in a huff

So tell her how you feel and let her go off in a huff! What's awful about that?

If you don't change your reaction nothing will change will it!

I think it depends what you want to happen here. Because, as a pp has pointed out, if you carry on the way you are then nothing will ever change.

If you’re just venting then no, yanbu. She sounds like a massive pain in the arse. If you’re looking for advice on how to change the situation, then you’re going to have to stand up for yourself. Tell her you’re moving because you want some space from her. If you do something nice for her and she doesn’t say thank you, pull her up on it. If she goes off in a huff, then let her go, because it sounds like she needs you more than you need her.