Feeling conflicted because my sister asked if she could eventually come onto my phone plan after she eventually leaves her husband, claiming she'll apply her discount from work, and pay for whatever difference remains. Being there for family is definitely something our family subscribes to, but for this, I really don't want to. I finally got off the plan shared with the two of them last year because I didn't want them and their issues and their bitterness to somehow screw me over. Additionally, the two of them constantly caused overage charges for the data. Me? I have a limited plan and start every month carrying over a ton of unused data. My sister claims she'll pay me back if there's an overage charge, but this coming from the woman whose bills I've occasionally had to pay because pay day didn't line up. Past due bills where she asked me to pay the minimum. She's paid me back for them, (except netflix, but we do share that,) but it just to me further highlights her money mismanagement. I just don't want to be responsible for her, and get screwed over because she's behind on bills. I just feel like I'd be an ass if I say no, but I feel like if she's planning on leaving her marriage, she needs to figure it out without assuming I'll just roll over for her when her money history is shit. I might be better with my money, but it doesn't mean it's not already tight for me. For added context, when my dad lost his job last year, and had to get his own phone (company paid for his for as long as cell phones have existed) I said I wasn't comfortable adding him because I had only just gotten off my sister's plan. And him I at least trust to pay things on time, even jobless. He's on his fiance's plan, which just makes more sense to me, but damn do I feel like I'm being the selfish party here. I'm probably going to ask for his advice when I see him tomorrow.