My sister deserves better

Honestly, it really pisses me off that my sister stays home and work while her boyfriend goes out and travel! In the past three years (they've been together for nearly 5) he has gone to mexico and new york twice and is now CURRENTLY in COLUMBIA! SOUTH AMERICA! He is a freelance dancer (not a very good one at that), and travels to events with partners he dances with. While on these trips he plays around more than he performs. I just feel like it is absolutely unfair that he is travelling the world and having fun while my sister stays behind, works two jobs and only has two cats and a dog as her friends, since she left them behind in our home state.

He recently quit a sales job because he "wanted to focus on himself and his well being".

Uhm, my sister is busting her butt and limiting her joy and freedom to be with you! She left her state to stay in your far more expensive state, cleaned houses, does uber eats, preschool, and library to keep the bills paid and food on the table. All he does is dance and spends his money frivolously on clothes and restaurants (which my sister always ends up having to contribute paying too) I just keep hoping that she'll finally leave her selfish and arrogant boyfriend and find something better for herself. She deserves it.