Sister fading away....

I have only 1 sister. I recently found out I was pregnant after 5 years of TTC, and she knew about my struggles. I live overseas in Australia and all my family are back in America. Lately she’s been so distant from me, and I feel like the only time she talks to me for more than 10 minutes is when I’ve lended her money.

I understand she’s busy, the kids are on summer vacation and all home. She has 4 young girls. I get it she has to look after them.

What pisses me off is....She finds time to talk to her boyfriend (she’s having an affair) privately. My cousin just moved back to the state....she’s 20 with 1 child, and unemployed. She’s ALWAYS over her house and my sister makes time to hang out with her. Then here I am overseas when I need her most she can’t spend 20minutes to video chat to me on messenger. Also lately when I call my sister my cousin has been answering her phone. I do not want to talk to my cousin I have no interest whatsoever. If I wanted to call my cousin I’d get her number and call!

Anyway my sister is 31 and since my young cousin has moved out there my sister has digressed into a teenager again. Smoking weed, and drinking heavily.

It’s been difficult for me to find friends over here and nobody could ever replace my sister. I need/want her in my life....but these days it seem like she over me. Idk what to do anymore