I understand that my sister is excited that my daughter is her first niece, but im getting tired of…

I understand that my sister is excited that my daughter is her first niece, but im getting tired of her never putting her down and always complains that she never sees her because she lives like 3 hours away, but she has seen her the most out of everybody I feel like, and she acts like she is going to take her by saying im just running out to my car and takes her when we are in a room full of family, and she can easily give her to someone else or she will take her for a walk, and I say yea sure thats fine just try not to take to long she has to eat in an hour, and she takes a super long walk and doesn't answer her phone after an hour of being out with my child sorry I really needed to vent she makes me so angry