My mum died 25 years ago, and I took on the responsibility of looking after my younger sister, at the time I was 24 and my sister was 8 years old. My sister was provided with a nice home, nice holidays, full support with regard to education and it goes without saying, love. My sister is now 33 and has a baby daughter. She is very close to her partner's parents but it's like she doesn't want to accept I was sort of like a parent to her. I pulled her up for some of her behaviours, including the fact I perhaps could have been seen as more than an aunt to her daughter. I wasn't allowed to post photos of her daughter on facebook but her other family members were. We offered to spend Christmas with her and the baby because her partner was working away, we would buy and prepare all the food, then the in-laws were invited and we were told she was stressed about xmas so we said we wouldn't go, next thing prior to Xmas our brother, partner, kids and her inlaws were all round there having a great time. The in-laws not only visited on Xmas day but stayed for two nights. There are many other examples of how she has treated me but she's always there to take the handouts, the new pram etc. I have asked her why she treats me so badly and rather than providing me with an answer she blocked me. this has really impacted me, I am not begging to be in someone's life but surely I deserve an answer. It feels like this is impacting all aspects of my life, after doing so much for so long it's like I don't matter or even exist.